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Finding the Fourth Proportional to 17,018.20, 25,505.70 and 8,234.20

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Solution

The fourth proportional to 17,018.20, 25,505.70 and 8,234.20 is: 12,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,018.20 : 25,505.70 = 8,234.20 : x
  2. Step 2: Convert to fraction form
    17,018.20/25,505.70 = 8,234.20/x
  3. Step 3: Cross multiply
    17,018.20x = 25,505.70 × 8,234.20
  4. Step 4: Simplify right side
    17,018.20x = 210,019,034.94
  5. Step 5: Solve for x
    x = 210,019,034.94/17,018.20
  6. Step 6: Final answer
    x = 12,340.85

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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.