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Finding the Third Proportional to 8,702 and 11,658.50

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Solution

The third proportional to 8,702 and 11,658.50 is: 15,619.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702 : 11,658.50 = 11,658.50 : x
  2. Step 2: Convert to fraction form
    8,702/11,658.50 = 11,658.50/x
  3. Step 3: Cross multiply
    8,702x = 11,658.50 × 11,658.50
  4. Step 4: Simplify right side
    8,702x = 135,920,622.25
  5. Step 5: Solve for x
    x = 135,920,622.25/8,702
  6. Step 6: Final answer
    x = 15,619.47

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.