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Finding the Third Proportional to 4,329 and 9,339

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Solution

The third proportional to 4,329 and 9,339 is: 20,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,329 : 9,339 = 9,339 : x
  2. Step 2: Convert to fraction form
    4,329/9,339 = 9,339/x
  3. Step 3: Cross multiply
    4,329x = 9,339 × 9,339
  4. Step 4: Simplify right side
    4,329x = 87,216,921
  5. Step 5: Solve for x
    x = 87,216,921/4,329
  6. Step 6: Final answer
    x = 20,147.13

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.