Home / 7,930.80-11,896.20-3,000.60

Finding the Fourth Proportional to 7,930.80, 11,896.20 and 3,000.60

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Solution

The fourth proportional to 7,930.80, 11,896.20 and 3,000.60 is: 4,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,930.80 : 11,896.20 = 3,000.60 : x
  2. Step 2: Convert to fraction form
    7,930.80/11,896.20 = 3,000.60/x
  3. Step 3: Cross multiply
    7,930.80x = 11,896.20 × 3,000.60
  4. Step 4: Simplify right side
    7,930.80x = 35,695,737.72
  5. Step 5: Solve for x
    x = 35,695,737.72/7,930.80
  6. Step 6: Final answer
    x = 4,500.90

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Similar ratio
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1.5x scale

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.