Home / 8,115.13-11,198.74-4,529.90

Finding the Fourth Proportional to 8,115.13, 11,198.74 and 4,529.90

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Solution

The fourth proportional to 8,115.13, 11,198.74 and 4,529.90 is: 6,251.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.13 : 11,198.74 = 4,529.90 : x
  2. Step 2: Convert to fraction form
    8,115.13/11,198.74 = 4,529.90/x
  3. Step 3: Cross multiply
    8,115.13x = 11,198.74 × 4,529.90
  4. Step 4: Simplify right side
    8,115.13x = 50,729,172.33
  5. Step 5: Solve for x
    x = 50,729,172.33/8,115.13
  6. Step 6: Final answer
    x = 6,251.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.