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Finding the Third Proportional to 9.51 and 18.71

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Solution

The third proportional to 9.51 and 18.71 is: 36.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.51 : 18.71 = 18.71 : x
  2. Step 2: Convert to fraction form
    9.51/18.71 = 18.71/x
  3. Step 3: Cross multiply
    9.51x = 18.71 × 18.71
  4. Step 4: Simplify right side
    9.51x = 349.95
  5. Step 5: Solve for x
    x = 349.95/9.51
  6. Step 6: Final answer
    x = 36.79

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.