Home / 8,198.82-12,305.52-3,278.07

Finding the Fourth Proportional to 8,198.82, 12,305.52 and 3,278.07

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Solution

The fourth proportional to 8,198.82, 12,305.52 and 3,278.07 is: 4,920.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198.82 : 12,305.52 = 3,278.07 : x
  2. Step 2: Convert to fraction form
    8,198.82/12,305.52 = 3,278.07/x
  3. Step 3: Cross multiply
    8,198.82x = 12,305.52 × 3,278.07
  4. Step 4: Simplify right side
    8,198.82x = 40,338,355.95
  5. Step 5: Solve for x
    x = 40,338,355.95/8,198.82
  6. Step 6: Final answer
    x = 4,920.02

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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.