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Finding the Third Proportional to 3,800 and 8,347

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Solution

The third proportional to 3,800 and 8,347 is: 18,334.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800 : 8,347 = 8,347 : x
  2. Step 2: Convert to fraction form
    3,800/8,347 = 8,347/x
  3. Step 3: Cross multiply
    3,800x = 8,347 × 8,347
  4. Step 4: Simplify right side
    3,800x = 69,672,409
  5. Step 5: Solve for x
    x = 69,672,409/3,800
  6. Step 6: Final answer
    x = 18,334.84

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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.