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Finding the Third Proportional to 7,624 and 11,405

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Solution

The third proportional to 7,624 and 11,405 is: 17,061.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,624 : 11,405 = 11,405 : x
  2. Step 2: Convert to fraction form
    7,624/11,405 = 11,405/x
  3. Step 3: Cross multiply
    7,624x = 11,405 × 11,405
  4. Step 4: Simplify right side
    7,624x = 130,074,025
  5. Step 5: Solve for x
    x = 130,074,025/7,624
  6. Step 6: Final answer
    x = 17,061.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.