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Finding the Third Proportional to 7,436 and 12,394

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Solution

The third proportional to 7,436 and 12,394 is: 20,657.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,436 : 12,394 = 12,394 : x
  2. Step 2: Convert to fraction form
    7,436/12,394 = 12,394/x
  3. Step 3: Cross multiply
    7,436x = 12,394 × 12,394
  4. Step 4: Simplify right side
    7,436x = 153,611,236
  5. Step 5: Solve for x
    x = 153,611,236/7,436
  6. Step 6: Final answer
    x = 20,657.78

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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.