Home / 8,028.80-11,078.98-4,491.92

Finding the Fourth Proportional to 8,028.80, 11,078.98 and 4,491.92

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Solution

The fourth proportional to 8,028.80, 11,078.98 and 4,491.92 is: 6,198.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,028.80 : 11,078.98 = 4,491.92 : x
  2. Step 2: Convert to fraction form
    8,028.80/11,078.98 = 4,491.92/x
  3. Step 3: Cross multiply
    8,028.80x = 11,078.98 × 4,491.92
  4. Step 4: Simplify right side
    8,028.80x = 49,765,891.84
  5. Step 5: Solve for x
    x = 49,765,891.84/8,028.80
  6. Step 6: Final answer
    x = 6,198.42

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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.