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Finding the Third Proportional to 10,366 and 15,511

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Solution

The third proportional to 10,366 and 15,511 is: 23,209.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,366 : 15,511 = 15,511 : x
  2. Step 2: Convert to fraction form
    10,366/15,511 = 15,511/x
  3. Step 3: Cross multiply
    10,366x = 15,511 × 15,511
  4. Step 4: Simplify right side
    10,366x = 240,591,121
  5. Step 5: Solve for x
    x = 240,591,121/10,366
  6. Step 6: Final answer
    x = 23,209.64

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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.