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Finding the Third Proportional to 12,108 and 17,138

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Solution

The third proportional to 12,108 and 17,138 is: 24,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108 : 17,138 = 17,138 : x
  2. Step 2: Convert to fraction form
    12,108/17,138 = 17,138/x
  3. Step 3: Cross multiply
    12,108x = 17,138 × 17,138
  4. Step 4: Simplify right side
    12,108x = 293,711,044
  5. Step 5: Solve for x
    x = 293,711,044/12,108
  6. Step 6: Final answer
    x = 24,257.60

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.