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Finding the Fourth Proportional to 8,566.36, 12,856.83 and 3,375.88

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Solution

The fourth proportional to 8,566.36, 12,856.83 and 3,375.88 is: 5,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.36 : 12,856.83 = 3,375.88 : x
  2. Step 2: Convert to fraction form
    8,566.36/12,856.83 = 3,375.88/x
  3. Step 3: Cross multiply
    8,566.36x = 12,856.83 × 3,375.88
  4. Step 4: Simplify right side
    8,566.36x = 43,403,115.26
  5. Step 5: Solve for x
    x = 43,403,115.26/8,566.36
  6. Step 6: Final answer
    x = 5,066.69

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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.