Home / 8,110.02-12,165.19-3,179.86

Finding the Fourth Proportional to 8,110.02, 12,165.19 and 3,179.86

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Solution

The fourth proportional to 8,110.02, 12,165.19 and 3,179.86 is: 4,769.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.02 : 12,165.19 = 3,179.86 : x
  2. Step 2: Convert to fraction form
    8,110.02/12,165.19 = 3,179.86/x
  3. Step 3: Cross multiply
    8,110.02x = 12,165.19 × 3,179.86
  4. Step 4: Simplify right side
    8,110.02x = 38,683,562.71
  5. Step 5: Solve for x
    x = 38,683,562.71/8,110.02
  6. Step 6: Final answer
    x = 4,769.85

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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.