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You entered the following equivalent proportions:

Define the proportion formula:
If 2 proportions are equal:
we can cross multiply to get:
Numerator 1
Denominator 1
Numerator 2
Denominator 2

Numerator 1 * Denominator 2 = Denominator 1 * Numerator 2

Solving for Denominator 2 we get:
Denominator 2  =  Denominator 1 * Numerator 2
  Numerator 1

Evaluate and simplfy
s  =  2 * 18
  12

s  =  36
  12

Final Answer

s = 3


What is the Answer?

How does the Proportion Calculator work?

Free Proportion Calculator - 1) Calculates the missing link of 2 equivalent proportions or ratios.
2) Also determines if two numerical proportions that you entered such as 1/10=6/12 are equivalent or not equivalent. Note: You can use all allowable operators such as =,<,≤,>,≥
This calculator has 4 inputs.

What 3 formulas are used for the Proportion Calculator?

What 3 concepts are covered in the Proportion Calculator?

equivalentequal in value, amount, function, meaningproportionn equation in which two ratios are set equal to each other
a/b = c/dratioindicates how many times one number contains another

Example calculations for the Proportion Calculator

Proportion Calculator Video Play

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