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Finding the Third Proportional to 8,391 and 17,481

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Solution

The third proportional to 8,391 and 17,481 is: 36,418.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391 : 17,481 = 17,481 : x
  2. Step 2: Convert to fraction form
    8,391/17,481 = 17,481/x
  3. Step 3: Cross multiply
    8,391x = 17,481 × 17,481
  4. Step 4: Simplify right side
    8,391x = 305,585,361
  5. Step 5: Solve for x
    x = 305,585,361/8,391
  6. Step 6: Final answer
    x = 36,418.23

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.