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Finding the Third Proportional to 8,247 and 12,483

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Solution

The third proportional to 8,247 and 12,483 is: 18,894.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247 : 12,483 = 12,483 : x
  2. Step 2: Convert to fraction form
    8,247/12,483 = 12,483/x
  3. Step 3: Cross multiply
    8,247x = 12,483 × 12,483
  4. Step 4: Simplify right side
    8,247x = 155,825,289
  5. Step 5: Solve for x
    x = 155,825,289/8,247
  6. Step 6: Final answer
    x = 18,894.78

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.