Home / 8,028.32-11,078.78-4,491.55

Finding the Fourth Proportional to 8,028.32, 11,078.78 and 4,491.55

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Solution

The fourth proportional to 8,028.32, 11,078.78 and 4,491.55 is: 6,198.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,028.32 : 11,078.78 = 4,491.55 : x
  2. Step 2: Convert to fraction form
    8,028.32/11,078.78 = 4,491.55/x
  3. Step 3: Cross multiply
    8,028.32x = 11,078.78 × 4,491.55
  4. Step 4: Simplify right side
    8,028.32x = 49,760,885.70
  5. Step 5: Solve for x
    x = 49,760,885.70/8,028.32
  6. Step 6: Final answer
    x = 6,198.17

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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.