Finding the Third Proportional to 7,139.75 and 15,808.75
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Solution
The third proportional to 7,139.75 and 15,808.75 is: 35,003.55
Step by Step Solution
- Step 1: Write the proportion equation
7,139.75 : 15,808.75 = 15,808.75 : x - Step 2: Convert to fraction form
7,139.75/15,808.75 = 15,808.75/x - Step 3: Cross multiply
7,139.75x = 15,808.75 × 15,808.75 - Step 4: Simplify right side
7,139.75x = 249,916,576.56 - Step 5: Solve for x
x = 249,916,576.56/7,139.75 - Step 6: Final answer
x = 35,003.55
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These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.