Home / 7,147.50-9,863.55-4,003.71

Finding the Fourth Proportional to 7,147.50, 9,863.55 and 4,003.71

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Solution

The fourth proportional to 7,147.50, 9,863.55 and 4,003.71 is: 5,525.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,147.50 : 9,863.55 = 4,003.71 : x
  2. Step 2: Convert to fraction form
    7,147.50/9,863.55 = 4,003.71/x
  3. Step 3: Cross multiply
    7,147.50x = 9,863.55 × 4,003.71
  4. Step 4: Simplify right side
    7,147.50x = 39,490,793.77
  5. Step 5: Solve for x
    x = 39,490,793.77/7,147.50
  6. Step 6: Final answer
    x = 5,525.12

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1.5x scale

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.