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Finding the Fourth Proportional to 17.06, 23.51 and 11.61

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Solution

The fourth proportional to 17.06, 23.51 and 11.61 is: 16.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.06 : 23.51 = 11.61 : x
  2. Step 2: Convert to fraction form
    17.06/23.51 = 11.61/x
  3. Step 3: Cross multiply
    17.06x = 23.51 × 11.61
  4. Step 4: Simplify right side
    17.06x = 272.98
  5. Step 5: Solve for x
    x = 272.98/17.06
  6. Step 6: Final answer
    x = 16.01

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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.