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Finding the Fourth Proportional to 8,479.02, 12,723.84 and 3,284.88

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Solution

The fourth proportional to 8,479.02, 12,723.84 and 3,284.88 is: 4,929.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.02 : 12,723.84 = 3,284.88 : x
  2. Step 2: Convert to fraction form
    8,479.02/12,723.84 = 3,284.88/x
  3. Step 3: Cross multiply
    8,479.02x = 12,723.84 × 3,284.88
  4. Step 4: Simplify right side
    8,479.02x = 41,796,287.54
  5. Step 5: Solve for x
    x = 41,796,287.54/8,479.02
  6. Step 6: Final answer
    x = 4,929.38

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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.