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Finding the Fourth Proportional to 17.07, 25.56 and 13.23

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Solution

The fourth proportional to 17.07, 25.56 and 13.23 is: 19.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.07 : 25.56 = 13.23 : x
  2. Step 2: Convert to fraction form
    17.07/25.56 = 13.23/x
  3. Step 3: Cross multiply
    17.07x = 25.56 × 13.23
  4. Step 4: Simplify right side
    17.07x = 338.27
  5. Step 5: Solve for x
    x = 338.27/17.07
  6. Step 6: Final answer
    x = 19.82

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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.