Solve the proportion 2x/5 = 9/15
The answer is x=4.5 because 9÷2=4.5 and 4.5×2=9
You need to get x alone so multiply each side by 5 to get rid of the fractions the will get you to 2x=45/15 which equals 2x=3 so x equals 3/2 or 1.5
