Proportions

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What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

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How do you solve for x in a proportion?

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To solve for x in a proportion, cross-multiply the terms and then isolate x.

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What is the cross-multiplication method?

Back

The cross-multiplication method involves multiplying the numerator of one ratio by the denominator of the other ratio.

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x = 75.

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x = 77.

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x = 16.

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x = 15.

Front

What does it mean if two ratios are equivalent?

Back

If two ratios are equivalent, they represent the same relationship between quantities.

Front

How can proportions be used in real life?

Back

Proportions can be used in real life for scaling recipes, calculating distances, and converting measurements.