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Finding the Third Proportional to 8.28 and 11.66

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Solution

The third proportional to 8.28 and 11.66 is: 16.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8.28 : 11.66 = 11.66 : x
  2. Step 2: Convert to fraction form
    8.28/11.66 = 11.66/x
  3. Step 3: Cross multiply
    8.28x = 11.66 × 11.66
  4. Step 4: Simplify right side
    8.28x = 135.88
  5. Step 5: Solve for x
    x = 135.88/8.28
  6. Step 6: Final answer
    x = 16.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.