Home / 8,248.20-12,372.30-3,869.88

Finding the Fourth Proportional to 8,248.20, 12,372.30 and 3,869.88

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Solution

The fourth proportional to 8,248.20, 12,372.30 and 3,869.88 is: 5,804.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,248.20 : 12,372.30 = 3,869.88 : x
  2. Step 2: Convert to fraction form
    8,248.20/12,372.30 = 3,869.88/x
  3. Step 3: Cross multiply
    8,248.20x = 12,372.30 × 3,869.88
  4. Step 4: Simplify right side
    8,248.20x = 47,879,316.32
  5. Step 5: Solve for x
    x = 47,879,316.32/8,248.20
  6. Step 6: Final answer
    x = 5,804.82

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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.