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Finding the Third Proportional to 12,446 and 18,866

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Solution

The third proportional to 12,446 and 18,866 is: 28,597.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446 : 18,866 = 18,866 : x
  2. Step 2: Convert to fraction form
    12,446/18,866 = 18,866/x
  3. Step 3: Cross multiply
    12,446x = 18,866 × 18,866
  4. Step 4: Simplify right side
    12,446x = 355,925,956
  5. Step 5: Solve for x
    x = 355,925,956/12,446
  6. Step 6: Final answer
    x = 28,597.62

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.