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Finding the Fourth Proportional to 8,579.17, 12,863.61 and 4,134.09

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Solution

The fourth proportional to 8,579.17, 12,863.61 and 4,134.09 is: 6,198.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.17 : 12,863.61 = 4,134.09 : x
  2. Step 2: Convert to fraction form
    8,579.17/12,863.61 = 4,134.09/x
  3. Step 3: Cross multiply
    8,579.17x = 12,863.61 × 4,134.09
  4. Step 4: Simplify right side
    8,579.17x = 53,179,297.35
  5. Step 5: Solve for x
    x = 53,179,297.35/8,579.17
  6. Step 6: Final answer
    x = 6,198.66

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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.