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Finding the Fourth Proportional to 16.82, 25.25 and 13.06

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Solution

The fourth proportional to 16.82, 25.25 and 13.06 is: 19.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    16.82 : 25.25 = 13.06 : x
  2. Step 2: Convert to fraction form
    16.82/25.25 = 13.06/x
  3. Step 3: Cross multiply
    16.82x = 25.25 × 13.06
  4. Step 4: Simplify right side
    16.82x = 329.77
  5. Step 5: Solve for x
    x = 329.77/16.82
  6. Step 6: Final answer
    x = 19.61

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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.