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Finding the Third Proportional to 5,361 and 8,561

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Solution

The third proportional to 5,361 and 8,561 is: 13,671.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,361 : 8,561 = 8,561 : x
  2. Step 2: Convert to fraction form
    5,361/8,561 = 8,561/x
  3. Step 3: Cross multiply
    5,361x = 8,561 × 8,561
  4. Step 4: Simplify right side
    5,361x = 73,290,721
  5. Step 5: Solve for x
    x = 73,290,721/5,361
  6. Step 6: Final answer
    x = 13,671.09

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.