So I'm not gonna give you the answer cause this is pretty easy math but I will walk you through it.
Step-by-step explanation: First multiply any 2 numbers you want. Write that number down and multiply the next 2 numbers and write it down. Add the 2 numbers you got from multiplying. With the number left over just add it to the equation.
Ratios are proportional if they represent the same relationship. One way to see if two ratios are proportional is to write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional.
