× (x)/(4) = (6)/(12) solve the proportions

Question

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`(x)/(4) = (6)/(12)` solve the proportions

Answer 1

To solve a problem like this, you can use a method called cross-multiplying. This is when you multiply the denominator of the first fraction by the numerator of the other and then multiply the two remaining numbers.


`(x)/(4) = (6)/(12)` To make this easier on yourself, simplify first!

`(x)/(4) = (1)/(2)` Multiply x by 2 and multiply 4 by 1.
2x = 4 Divide both sides by 2.
x = 2

You can check this by comparing the fractions with 2 in the place of x.


`(2)/(4) = (6)/(12)` Simplify!

`(1)/(2) = (1)/(2)`

The fractions are equal, so x = 2 .