Home / 7,819.23-11,724.60-3,861.83

Finding the Fourth Proportional to 7,819.23, 11,724.60 and 3,861.83

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Solution

The fourth proportional to 7,819.23, 11,724.60 and 3,861.83 is: 5,790.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.23 : 11,724.60 = 3,861.83 : x
  2. Step 2: Convert to fraction form
    7,819.23/11,724.60 = 3,861.83/x
  3. Step 3: Cross multiply
    7,819.23x = 11,724.60 × 3,861.83
  4. Step 4: Simplify right side
    7,819.23x = 45,278,368.14
  5. Step 5: Solve for x
    x = 45,278,368.14/7,819.23
  6. Step 6: Final answer
    x = 5,790.64

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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.