Home / 8,540.83-12,812.78-3,863.04

Finding the Fourth Proportional to 8,540.83, 12,812.78 and 3,863.04

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Solution

The fourth proportional to 8,540.83, 12,812.78 and 3,863.04 is: 5,795.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.83 : 12,812.78 = 3,863.04 : x
  2. Step 2: Convert to fraction form
    8,540.83/12,812.78 = 3,863.04/x
  3. Step 3: Cross multiply
    8,540.83x = 12,812.78 × 3,863.04
  4. Step 4: Simplify right side
    8,540.83x = 49,496,281.65
  5. Step 5: Solve for x
    x = 49,496,281.65/8,540.83
  6. Step 6: Final answer
    x = 5,795.25

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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.