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Finding the Third Proportional to 8,198 and 12,231

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Solution

The third proportional to 8,198 and 12,231 is: 18,248.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198 : 12,231 = 12,231 : x
  2. Step 2: Convert to fraction form
    8,198/12,231 = 12,231/x
  3. Step 3: Cross multiply
    8,198x = 12,231 × 12,231
  4. Step 4: Simplify right side
    8,198x = 149,597,361
  5. Step 5: Solve for x
    x = 149,597,361/8,198
  6. Step 6: Final answer
    x = 18,248.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.