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Finding the Third Proportional to 3,942 and 8,336

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Solution

The third proportional to 3,942 and 8,336 is: 17,627.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942 : 8,336 = 8,336 : x
  2. Step 2: Convert to fraction form
    3,942/8,336 = 8,336/x
  3. Step 3: Cross multiply
    3,942x = 8,336 × 8,336
  4. Step 4: Simplify right side
    3,942x = 69,488,896
  5. Step 5: Solve for x
    x = 69,488,896/3,942
  6. Step 6: Final answer
    x = 17,627.83

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.