Home / 8,110.64-12,158.16-4,161.92

Finding the Fourth Proportional to 8,110.64, 12,158.16 and 4,161.92

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Solution

The fourth proportional to 8,110.64, 12,158.16 and 4,161.92 is: 6,238.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.64 : 12,158.16 = 4,161.92 : x
  2. Step 2: Convert to fraction form
    8,110.64/12,158.16 = 4,161.92/x
  3. Step 3: Cross multiply
    8,110.64x = 12,158.16 × 4,161.92
  4. Step 4: Simplify right side
    8,110.64x = 50,601,289.27
  5. Step 5: Solve for x
    x = 50,601,289.27/8,110.64
  6. Step 6: Final answer
    x = 6,238.88

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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.