Home / 7,121.44-10,672.40-4,002.96

Finding the Fourth Proportional to 7,121.44, 10,672.40 and 4,002.96

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Solution

The fourth proportional to 7,121.44, 10,672.40 and 4,002.96 is: 5,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.44 : 10,672.40 = 4,002.96 : x
  2. Step 2: Convert to fraction form
    7,121.44/10,672.40 = 4,002.96/x
  3. Step 3: Cross multiply
    7,121.44x = 10,672.40 × 4,002.96
  4. Step 4: Simplify right side
    7,121.44x = 42,721,190.30
  5. Step 5: Solve for x
    x = 42,721,190.30/7,121.44
  6. Step 6: Final answer
    x = 5,998.95

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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.