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Finding the Third Proportional to 7,515.75 and 9,610.88

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Solution

The third proportional to 7,515.75 and 9,610.88 is: 12,290.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.75 : 9,610.88 = 9,610.88 : x
  2. Step 2: Convert to fraction form
    7,515.75/9,610.88 = 9,610.88/x
  3. Step 3: Cross multiply
    7,515.75x = 9,610.88 × 9,610.88
  4. Step 4: Simplify right side
    7,515.75x = 92,368,918.27
  5. Step 5: Solve for x
    x = 92,368,918.27/7,515.75
  6. Step 6: Final answer
    x = 12,290.05

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.