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Finding the Fourth Proportional to 17.53, 26.12 and 16.66

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Solution

The fourth proportional to 17.53, 26.12 and 16.66 is: 24.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.53 : 26.12 = 16.66 : x
  2. Step 2: Convert to fraction form
    17.53/26.12 = 16.66/x
  3. Step 3: Cross multiply
    17.53x = 26.12 × 16.66
  4. Step 4: Simplify right side
    17.53x = 435.16
  5. Step 5: Solve for x
    x = 435.16/17.53
  6. Step 6: Final answer
    x = 24.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.