Home / 8,140.13-12,201.67-3,760.46

Finding the Fourth Proportional to 8,140.13, 12,201.67 and 3,760.46

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Solution

The fourth proportional to 8,140.13, 12,201.67 and 3,760.46 is: 5,636.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.13 : 12,201.67 = 3,760.46 : x
  2. Step 2: Convert to fraction form
    8,140.13/12,201.67 = 3,760.46/x
  3. Step 3: Cross multiply
    8,140.13x = 12,201.67 × 3,760.46
  4. Step 4: Simplify right side
    8,140.13x = 45,883,891.97
  5. Step 5: Solve for x
    x = 45,883,891.97/8,140.13
  6. Step 6: Final answer
    x = 5,636.75

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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.