Home / 8,190.66-12,278.52-3,263.19

Finding the Fourth Proportional to 8,190.66, 12,278.52 and 3,263.19

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Solution

The fourth proportional to 8,190.66, 12,278.52 and 3,263.19 is: 4,891.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.66 : 12,278.52 = 3,263.19 : x
  2. Step 2: Convert to fraction form
    8,190.66/12,278.52 = 3,263.19/x
  3. Step 3: Cross multiply
    8,190.66x = 12,278.52 × 3,263.19
  4. Step 4: Simplify right side
    8,190.66x = 40,067,143.68
  5. Step 5: Solve for x
    x = 40,067,143.68/8,190.66
  6. Step 6: Final answer
    x = 4,891.81

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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.