Home / 7,520.88-10,378.66-4,163.49

Finding the Fourth Proportional to 7,520.88, 10,378.66 and 4,163.49

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Solution

The fourth proportional to 7,520.88, 10,378.66 and 4,163.49 is: 5,745.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.88 : 10,378.66 = 4,163.49 : x
  2. Step 2: Convert to fraction form
    7,520.88/10,378.66 = 4,163.49/x
  3. Step 3: Cross multiply
    7,520.88x = 10,378.66 × 4,163.49
  4. Step 4: Simplify right side
    7,520.88x = 43,211,447.12
  5. Step 5: Solve for x
    x = 43,211,447.12/7,520.88
  6. Step 6: Final answer
    x = 5,745.53

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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.