Home / 8,255.81-12,385.52-2,412.88

Finding the Fourth Proportional to 8,255.81, 12,385.52 and 2,412.88

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Solution

The fourth proportional to 8,255.81, 12,385.52 and 2,412.88 is: 3,619.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.81 : 12,385.52 = 2,412.88 : x
  2. Step 2: Convert to fraction form
    8,255.81/12,385.52 = 2,412.88/x
  3. Step 3: Cross multiply
    8,255.81x = 12,385.52 × 2,412.88
  4. Step 4: Simplify right side
    8,255.81x = 29,884,773.50
  5. Step 5: Solve for x
    x = 29,884,773.50/8,255.81
  6. Step 6: Final answer
    x = 3,619.85

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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.