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Finding the Third Proportional to 6.38 and 16.13

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Solution

The third proportional to 6.38 and 16.13 is: 40.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6.38 : 16.13 = 16.13 : x
  2. Step 2: Convert to fraction form
    6.38/16.13 = 16.13/x
  3. Step 3: Cross multiply
    6.38x = 16.13 × 16.13
  4. Step 4: Simplify right side
    6.38x = 260.02
  5. Step 5: Solve for x
    x = 260.02/6.38
  6. Step 6: Final answer
    x = 40.79

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Why These Related Problems?

These problems maintain the same ratio (2.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.