Home / 8,743.60-13,112.68-3,811.92

Finding the Fourth Proportional to 8,743.60, 13,112.68 and 3,811.92

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Solution

The fourth proportional to 8,743.60, 13,112.68 and 3,811.92 is: 5,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.60 : 13,112.68 = 3,811.92 : x
  2. Step 2: Convert to fraction form
    8,743.60/13,112.68 = 3,811.92/x
  3. Step 3: Cross multiply
    8,743.60x = 13,112.68 × 3,811.92
  4. Step 4: Simplify right side
    8,743.60x = 49,984,487.15
  5. Step 5: Solve for x
    x = 49,984,487.15/8,743.60
  6. Step 6: Final answer
    x = 5,716.69

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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.