Home / 8,251.92-12,381.12-7,571.52

Finding the Fourth Proportional to 8,251.92, 12,381.12 and 7,571.52

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Solution

The fourth proportional to 8,251.92, 12,381.12 and 7,571.52 is: 11,360.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251.92 : 12,381.12 = 7,571.52 : x
  2. Step 2: Convert to fraction form
    8,251.92/12,381.12 = 7,571.52/x
  3. Step 3: Cross multiply
    8,251.92x = 12,381.12 × 7,571.52
  4. Step 4: Simplify right side
    8,251.92x = 93,743,897.70
  5. Step 5: Solve for x
    x = 93,743,897.70/8,251.92
  6. Step 6: Final answer
    x = 11,360.25

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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.