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Finding the Third Proportional to 11,497 and 21,353

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Solution

The third proportional to 11,497 and 21,353 is: 39,658.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,497 : 21,353 = 21,353 : x
  2. Step 2: Convert to fraction form
    11,497/21,353 = 21,353/x
  3. Step 3: Cross multiply
    11,497x = 21,353 × 21,353
  4. Step 4: Simplify right side
    11,497x = 455,950,609
  5. Step 5: Solve for x
    x = 455,950,609/11,497
  6. Step 6: Final answer
    x = 39,658.22

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Why These Related Problems?

These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.