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Finding the Third Proportional to 3,889 and 8,327

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Solution

The third proportional to 3,889 and 8,327 is: 17,829.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889 : 8,327 = 8,327 : x
  2. Step 2: Convert to fraction form
    3,889/8,327 = 8,327/x
  3. Step 3: Cross multiply
    3,889x = 8,327 × 8,327
  4. Step 4: Simplify right side
    3,889x = 69,338,929
  5. Step 5: Solve for x
    x = 69,338,929/3,889
  6. Step 6: Final answer
    x = 17,829.50

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.