Home / 8,940.28-12,335.70-5,163.43

Finding the Fourth Proportional to 8,940.28, 12,335.70 and 5,163.43

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Solution

The fourth proportional to 8,940.28, 12,335.70 and 5,163.43 is: 7,124.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.28 : 12,335.70 = 5,163.43 : x
  2. Step 2: Convert to fraction form
    8,940.28/12,335.70 = 5,163.43/x
  3. Step 3: Cross multiply
    8,940.28x = 12,335.70 × 5,163.43
  4. Step 4: Simplify right side
    8,940.28x = 63,694,523.45
  5. Step 5: Solve for x
    x = 63,694,523.45/8,940.28
  6. Step 6: Final answer
    x = 7,124.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.