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Finding the Third Proportional to 15,156 and 16,788

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Solution

The third proportional to 15,156 and 16,788 is: 18,595.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,156 : 16,788 = 16,788 : x
  2. Step 2: Convert to fraction form
    15,156/16,788 = 16,788/x
  3. Step 3: Cross multiply
    15,156x = 16,788 × 16,788
  4. Step 4: Simplify right side
    15,156x = 281,836,944
  5. Step 5: Solve for x
    x = 281,836,944/15,156
  6. Step 6: Final answer
    x = 18,595.73

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.