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Finding the Third Proportional to 8,644 and 9,364

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Solution

The third proportional to 8,644 and 9,364 is: 10,143.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644 : 9,364 = 9,364 : x
  2. Step 2: Convert to fraction form
    8,644/9,364 = 9,364/x
  3. Step 3: Cross multiply
    8,644x = 9,364 × 9,364
  4. Step 4: Simplify right side
    8,644x = 87,684,496
  5. Step 5: Solve for x
    x = 87,684,496/8,644
  6. Step 6: Final answer
    x = 10,143.97

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.