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Finding the Third Proportional to 13,126 and 21,876

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Solution

The third proportional to 13,126 and 21,876 is: 36,458.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,126 : 21,876 = 21,876 : x
  2. Step 2: Convert to fraction form
    13,126/21,876 = 21,876/x
  3. Step 3: Cross multiply
    13,126x = 21,876 × 21,876
  4. Step 4: Simplify right side
    13,126x = 478,559,376
  5. Step 5: Solve for x
    x = 478,559,376/13,126
  6. Step 6: Final answer
    x = 36,458.89

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.