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Finding the Third Proportional to 8,644 and 18,440

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Solution

The third proportional to 8,644 and 18,440 is: 39,337.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644 : 18,440 = 18,440 : x
  2. Step 2: Convert to fraction form
    8,644/18,440 = 18,440/x
  3. Step 3: Cross multiply
    8,644x = 18,440 × 18,440
  4. Step 4: Simplify right side
    8,644x = 340,033,600
  5. Step 5: Solve for x
    x = 340,033,600/8,644
  6. Step 6: Final answer
    x = 39,337.53

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.