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Finding the Fourth Proportional to 8,479.83, 12,711.65 and 3,797.22

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Solution

The fourth proportional to 8,479.83, 12,711.65 and 3,797.22 is: 5,692.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.83 : 12,711.65 = 3,797.22 : x
  2. Step 2: Convert to fraction form
    8,479.83/12,711.65 = 3,797.22/x
  3. Step 3: Cross multiply
    8,479.83x = 12,711.65 × 3,797.22
  4. Step 4: Simplify right side
    8,479.83x = 48,268,912.63
  5. Step 5: Solve for x
    x = 48,268,912.63/8,479.83
  6. Step 6: Final answer
    x = 5,692.20

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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.