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Finding the Third Proportional to 8,282 and 11,211

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Solution

The third proportional to 8,282 and 11,211 is: 15,175.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,282 : 11,211 = 11,211 : x
  2. Step 2: Convert to fraction form
    8,282/11,211 = 11,211/x
  3. Step 3: Cross multiply
    8,282x = 11,211 × 11,211
  4. Step 4: Simplify right side
    8,282x = 125,686,521
  5. Step 5: Solve for x
    x = 125,686,521/8,282
  6. Step 6: Final answer
    x = 15,175.87

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.