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Finding the Third Proportional to 12,079.13 and 18,478.97

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Solution

The third proportional to 12,079.13 and 18,478.97 is: 28,269.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.13 : 18,478.97 = 18,478.97 : x
  2. Step 2: Convert to fraction form
    12,079.13/18,478.97 = 18,478.97/x
  3. Step 3: Cross multiply
    12,079.13x = 18,478.97 × 18,478.97
  4. Step 4: Simplify right side
    12,079.13x = 341,472,286.06
  5. Step 5: Solve for x
    x = 341,472,286.06/12,079.13
  6. Step 6: Final answer
    x = 28,269.62

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.