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Finding the Fourth Proportional to 16.66, 25.01 and 11.30

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Solution

The fourth proportional to 16.66, 25.01 and 11.30 is: 16.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.66 : 25.01 = 11.30 : x
  2. Step 2: Convert to fraction form
    16.66/25.01 = 11.30/x
  3. Step 3: Cross multiply
    16.66x = 25.01 × 11.30
  4. Step 4: Simplify right side
    16.66x = 282.61
  5. Step 5: Solve for x
    x = 282.61/16.66
  6. Step 6: Final answer
    x = 16.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.