How to solve a proportion using the cross product

The video tutorial explains how to solve a proportion by setting two ratios equal and applying cross multiplication. It emphasizes the importance of rewriting cross products and using the distributive property. The tutorial walks through solving the equation step-by-step, including subtraction and division, and concludes with the final fractional answer.

What is the first step when you see a proportion or a ratio set equal to another ratio?

• Subtract the ratios

• Divide the ratios

• Cross multiply the ratios

• Add the ratios together

Why is it important to write the cross product with parentheses?

• To make it look neat

• To avoid adding extra terms

• To ensure the distributive property is applied correctly

• To make it easier to divide

What is the result of 7 multiplied by 3?

• 24

• 14

• 21

• 10

After applying the distributive property, what is the next step in solving the equation?

• Divide both sides by 2

• Add 2 to both sides

• Multiply both sides by 2

• Subtract 2 from both sides

What is the final form of the solution to the equation?

• 19/2

• 21

• 19

• 2/19