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Finding the Fourth Proportional to 17,138.25, 25,711.17 and 7,285.95

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Solution

The fourth proportional to 17,138.25, 25,711.17 and 7,285.95 is: 10,930.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,138.25 : 25,711.17 = 7,285.95 : x
  2. Step 2: Convert to fraction form
    17,138.25/25,711.17 = 7,285.95/x
  3. Step 3: Cross multiply
    17,138.25x = 25,711.17 × 7,285.95
  4. Step 4: Simplify right side
    17,138.25x = 187,330,299.06
  5. Step 5: Solve for x
    x = 187,330,299.06/17,138.25
  6. Step 6: Final answer
    x = 10,930.54

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1.5x scale

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.