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Finding the Third Proportional to 11,621 and 13,349

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Solution

The third proportional to 11,621 and 13,349 is: 15,333.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621 : 13,349 = 13,349 : x
  2. Step 2: Convert to fraction form
    11,621/13,349 = 13,349/x
  3. Step 3: Cross multiply
    11,621x = 13,349 × 13,349
  4. Step 4: Simplify right side
    11,621x = 178,195,801
  5. Step 5: Solve for x
    x = 178,195,801/11,621
  6. Step 6: Final answer
    x = 15,333.95

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.