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Finding the Fourth Proportional to 10.27, 14.17 and 5.66

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Solution

The fourth proportional to 10.27, 14.17 and 5.66 is: 7.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10.27 : 14.17 = 5.66 : x
  2. Step 2: Convert to fraction form
    10.27/14.17 = 5.66/x
  3. Step 3: Cross multiply
    10.27x = 14.17 × 5.66
  4. Step 4: Simplify right side
    10.27x = 80.19
  5. Step 5: Solve for x
    x = 80.19/10.27
  6. Step 6: Final answer
    x = 7.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.