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Finding the Fourth Proportional to 17.04, 25.45 and 11.28

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Solution

The fourth proportional to 17.04, 25.45 and 11.28 is: 16.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.04 : 25.45 = 11.28 : x
  2. Step 2: Convert to fraction form
    17.04/25.45 = 11.28/x
  3. Step 3: Cross multiply
    17.04x = 25.45 × 11.28
  4. Step 4: Simplify right side
    17.04x = 287.08
  5. Step 5: Solve for x
    x = 287.08/17.04
  6. Step 6: Final answer
    x = 16.85

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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.