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Finding the Third Proportional to 8.14 and 18.71

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Solution

The third proportional to 8.14 and 18.71 is: 43.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8.14 : 18.71 = 18.71 : x
  2. Step 2: Convert to fraction form
    8.14/18.71 = 18.71/x
  3. Step 3: Cross multiply
    8.14x = 18.71 × 18.71
  4. Step 4: Simplify right side
    8.14x = 350.11
  5. Step 5: Solve for x
    x = 350.11/8.14
  6. Step 6: Final answer
    x = 43.04

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.