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Finding the Fourth Proportional to 17.59, 26.38 and 5.57

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Solution

The fourth proportional to 17.59, 26.38 and 5.57 is: 8.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17.59 : 26.38 = 5.57 : x
  2. Step 2: Convert to fraction form
    17.59/26.38 = 5.57/x
  3. Step 3: Cross multiply
    17.59x = 26.38 × 5.57
  4. Step 4: Simplify right side
    17.59x = 146.80
  5. Step 5: Solve for x
    x = 146.80/17.59
  6. Step 6: Final answer
    x = 8.35

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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.