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Finding the Third Proportional to 8,636 and 11,282

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Solution

The third proportional to 8,636 and 11,282 is: 14,738.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636 : 11,282 = 11,282 : x
  2. Step 2: Convert to fraction form
    8,636/11,282 = 11,282/x
  3. Step 3: Cross multiply
    8,636x = 11,282 × 11,282
  4. Step 4: Simplify right side
    8,636x = 127,283,524
  5. Step 5: Solve for x
    x = 127,283,524/8,636
  6. Step 6: Final answer
    x = 14,738.71

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.