# How do you solve 1.5:3 = x:12?

Mar 6, 2016

$x = 6$

#### Explanation:

To get from $1.5$ to $3$, you multiply by $2$.

($1.5 \times 2 = 3$).

So hence, for the ratio to be equivalent, you need to find a number, such that when you multiply it by $2$, you get $12$.

This number is hence $\frac{12}{2} = 6$.

($6 \times 2 = 12$)