Home / 7,520.40-10,377.94-4,163.12

Finding the Fourth Proportional to 7,520.40, 10,377.94 and 4,163.12

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Solution

The fourth proportional to 7,520.40, 10,377.94 and 4,163.12 is: 5,744.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.40 : 10,377.94 = 4,163.12 : x
  2. Step 2: Convert to fraction form
    7,520.40/10,377.94 = 4,163.12/x
  3. Step 3: Cross multiply
    7,520.40x = 10,377.94 × 4,163.12
  4. Step 4: Simplify right side
    7,520.40x = 43,204,609.57
  5. Step 5: Solve for x
    x = 43,204,609.57/7,520.40
  6. Step 6: Final answer
    x = 5,744.99

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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.