Home / 8,578.32-12,868.42-2,733.60

Finding the Fourth Proportional to 8,578.32, 12,868.42 and 2,733.60

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Solution

The fourth proportional to 8,578.32, 12,868.42 and 2,733.60 is: 4,100.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,578.32 : 12,868.42 = 2,733.60 : x
  2. Step 2: Convert to fraction form
    8,578.32/12,868.42 = 2,733.60/x
  3. Step 3: Cross multiply
    8,578.32x = 12,868.42 × 2,733.60
  4. Step 4: Simplify right side
    8,578.32x = 35,177,112.91
  5. Step 5: Solve for x
    x = 35,177,112.91/8,578.32
  6. Step 6: Final answer
    x = 4,100.70

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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.