Home / 8,477.68-12,716.44-3,279.92

Finding the Fourth Proportional to 8,477.68, 12,716.44 and 3,279.92

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Solution

The fourth proportional to 8,477.68, 12,716.44 and 3,279.92 is: 4,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,477.68 : 12,716.44 = 3,279.92 : x
  2. Step 2: Convert to fraction form
    8,477.68/12,716.44 = 3,279.92/x
  3. Step 3: Cross multiply
    8,477.68x = 12,716.44 × 3,279.92
  4. Step 4: Simplify right side
    8,477.68x = 41,708,905.88
  5. Step 5: Solve for x
    x = 41,708,905.88/8,477.68
  6. Step 6: Final answer
    x = 4,919.85

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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.