Home / 8,541.20-12,802.62-3,863.72

Finding the Fourth Proportional to 8,541.20, 12,802.62 and 3,863.72

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Solution

The fourth proportional to 8,541.20, 12,802.62 and 3,863.72 is: 5,791.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.20 : 12,802.62 = 3,863.72 : x
  2. Step 2: Convert to fraction form
    8,541.20/12,802.62 = 3,863.72/x
  3. Step 3: Cross multiply
    8,541.20x = 12,802.62 × 3,863.72
  4. Step 4: Simplify right side
    8,541.20x = 49,465,738.95
  5. Step 5: Solve for x
    x = 49,465,738.95/8,541.20
  6. Step 6: Final answer
    x = 5,791.43

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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.