How do you complete the proportion $\frac{4}{5} = \frac{x}{15}$ $4/5=x/15$ ?

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Answer 1 · 2017-01-13T04:23:02

Multiply each side of the equation by $15$ $15$ to find $x$ $x$ . See full process below:

Multiply each side of the equation by $15$ $color(red)(15)$ to find $x$ $x$ .

$15 \times \frac{4}{5} = 15 \times \frac{x}{15}$ $color(red)(15) xx 4/5 = color(red)(15) xx x/15$

$60/5 = cancel(color(red)(15)) xx x/color(red)(cancel(color(black)(15)))$

$12 = x$

Substituting $12$ for $x$ gives:

$4/5 = 12/15$

How do you complete the proportion 4/5=x/1545=x154/5=x/15?