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Finding the Third Proportional to 11,326 and 15,218

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Solution

The third proportional to 11,326 and 15,218 is: 20,447.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326 : 15,218 = 15,218 : x
  2. Step 2: Convert to fraction form
    11,326/15,218 = 15,218/x
  3. Step 3: Cross multiply
    11,326x = 15,218 × 15,218
  4. Step 4: Simplify right side
    11,326x = 231,587,524
  5. Step 5: Solve for x
    x = 231,587,524/11,326
  6. Step 6: Final answer
    x = 20,447.42

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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.