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Finding the Third Proportional to 9.91 and 15.08

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Solution

The third proportional to 9.91 and 15.08 is: 22.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.91 : 15.08 = 15.08 : x
  2. Step 2: Convert to fraction form
    9.91/15.08 = 15.08/x
  3. Step 3: Cross multiply
    9.91x = 15.08 × 15.08
  4. Step 4: Simplify right side
    9.91x = 227.47
  5. Step 5: Solve for x
    x = 227.47/9.91
  6. Step 6: Final answer
    x = 22.94

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.