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Finding the Third Proportional to 7,165 and 9,539

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Solution

The third proportional to 7,165 and 9,539 is: 12,699.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165 : 9,539 = 9,539 : x
  2. Step 2: Convert to fraction form
    7,165/9,539 = 9,539/x
  3. Step 3: Cross multiply
    7,165x = 9,539 × 9,539
  4. Step 4: Simplify right side
    7,165x = 90,992,521
  5. Step 5: Solve for x
    x = 90,992,521/7,165
  6. Step 6: Final answer
    x = 12,699.58

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.