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Finding the Third Proportional to 9.28 and 16.88

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Solution

The third proportional to 9.28 and 16.88 is: 30.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.28 : 16.88 = 16.88 : x
  2. Step 2: Convert to fraction form
    9.28/16.88 = 16.88/x
  3. Step 3: Cross multiply
    9.28x = 16.88 × 16.88
  4. Step 4: Simplify right side
    9.28x = 284.77
  5. Step 5: Solve for x
    x = 284.77/9.28
  6. Step 6: Final answer
    x = 30.68

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Why These Related Problems?

These problems maintain the same ratio (1.82) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.