Home / 8,541.18-12,811.80-5,067.90

Finding the Fourth Proportional to 8,541.18, 12,811.80 and 5,067.90

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Solution

The fourth proportional to 8,541.18, 12,811.80 and 5,067.90 is: 7,601.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,541.18 : 12,811.80 = 5,067.90 : x
  2. Step 2: Convert to fraction form
    8,541.18/12,811.80 = 5,067.90/x
  3. Step 3: Cross multiply
    8,541.18x = 12,811.80 × 5,067.90
  4. Step 4: Simplify right side
    8,541.18x = 64,928,921.22
  5. Step 5: Solve for x
    x = 64,928,921.22/8,541.18
  6. Step 6: Final answer
    x = 7,601.87

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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.