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Finding the Third Proportional to 11,298 and 15,177

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Solution

The third proportional to 11,298 and 15,177 is: 20,387.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,298 : 15,177 = 15,177 : x
  2. Step 2: Convert to fraction form
    11,298/15,177 = 15,177/x
  3. Step 3: Cross multiply
    11,298x = 15,177 × 15,177
  4. Step 4: Simplify right side
    11,298x = 230,341,329
  5. Step 5: Solve for x
    x = 230,341,329/11,298
  6. Step 6: Final answer
    x = 20,387.80

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.