Home / 8,479.20-12,713.60-3,796.64

Finding the Fourth Proportional to 8,479.20, 12,713.60 and 3,796.64

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Solution

The fourth proportional to 8,479.20, 12,713.60 and 3,796.64 is: 5,692.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.20 : 12,713.60 = 3,796.64 : x
  2. Step 2: Convert to fraction form
    8,479.20/12,713.60 = 3,796.64/x
  3. Step 3: Cross multiply
    8,479.20x = 12,713.60 × 3,796.64
  4. Step 4: Simplify right side
    8,479.20x = 48,268,962.30
  5. Step 5: Solve for x
    x = 48,268,962.30/8,479.20
  6. Step 6: Final answer
    x = 5,692.63

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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.