Home / 7,930.20-11,891.86-4,231.62

Finding the Fourth Proportional to 7,930.20, 11,891.86 and 4,231.62

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Solution

The fourth proportional to 7,930.20, 11,891.86 and 4,231.62 is: 6,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.20 : 11,891.86 = 4,231.62 : x
  2. Step 2: Convert to fraction form
    7,930.20/11,891.86 = 4,231.62/x
  3. Step 3: Cross multiply
    7,930.20x = 11,891.86 × 4,231.62
  4. Step 4: Simplify right side
    7,930.20x = 50,321,832.61
  5. Step 5: Solve for x
    x = 50,321,832.61/7,930.20
  6. Step 6: Final answer
    x = 6,345.59

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.