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Finding the Third Proportional to 8,123 and 16,861

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Solution

The third proportional to 8,123 and 16,861 is: 34,998.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123 : 16,861 = 16,861 : x
  2. Step 2: Convert to fraction form
    8,123/16,861 = 16,861/x
  3. Step 3: Cross multiply
    8,123x = 16,861 × 16,861
  4. Step 4: Simplify right side
    8,123x = 284,293,321
  5. Step 5: Solve for x
    x = 284,293,321/8,123
  6. Step 6: Final answer
    x = 34,998.56

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.