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Finding the Third Proportional to 9,128 and 13,267

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Solution

The third proportional to 9,128 and 13,267 is: 19,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128 : 13,267 = 13,267 : x
  2. Step 2: Convert to fraction form
    9,128/13,267 = 13,267/x
  3. Step 3: Cross multiply
    9,128x = 13,267 × 13,267
  4. Step 4: Simplify right side
    9,128x = 176,013,289
  5. Step 5: Solve for x
    x = 176,013,289/9,128
  6. Step 6: Final answer
    x = 19,282.79

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.