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Finding the Third Proportional to 3,784 and 8,336

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Solution

The third proportional to 3,784 and 8,336 is: 18,363.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784 : 8,336 = 8,336 : x
  2. Step 2: Convert to fraction form
    3,784/8,336 = 8,336/x
  3. Step 3: Cross multiply
    3,784x = 8,336 × 8,336
  4. Step 4: Simplify right side
    3,784x = 69,488,896
  5. Step 5: Solve for x
    x = 69,488,896/3,784
  6. Step 6: Final answer
    x = 18,363.87

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.