Home / 8,581.20-11,841.30-4,855.20

Finding the Fourth Proportional to 8,581.20, 11,841.30 and 4,855.20

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Solution

The fourth proportional to 8,581.20, 11,841.30 and 4,855.20 is: 6,699.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.20 : 11,841.30 = 4,855.20 : x
  2. Step 2: Convert to fraction form
    8,581.20/11,841.30 = 4,855.20/x
  3. Step 3: Cross multiply
    8,581.20x = 11,841.30 × 4,855.20
  4. Step 4: Simplify right side
    8,581.20x = 57,491,879.76
  5. Step 5: Solve for x
    x = 57,491,879.76/8,581.20
  6. Step 6: Final answer
    x = 6,699.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.