Home / 8,451.06-12,679.83-3,519.38

Finding the Fourth Proportional to 8,451.06, 12,679.83 and 3,519.38

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Solution

The fourth proportional to 8,451.06, 12,679.83 and 3,519.38 is: 5,280.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.06 : 12,679.83 = 3,519.38 : x
  2. Step 2: Convert to fraction form
    8,451.06/12,679.83 = 3,519.38/x
  3. Step 3: Cross multiply
    8,451.06x = 12,679.83 × 3,519.38
  4. Step 4: Simplify right side
    8,451.06x = 44,625,076.71
  5. Step 5: Solve for x
    x = 44,625,076.71/8,451.06
  6. Step 6: Final answer
    x = 5,280.41

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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.