Home / 7,520.22-10,378.13-4,163.36

Finding the Fourth Proportional to 7,520.22, 10,378.13 and 4,163.36

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Solution

The fourth proportional to 7,520.22, 10,378.13 and 4,163.36 is: 5,745.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.22 : 10,378.13 = 4,163.36 : x
  2. Step 2: Convert to fraction form
    7,520.22/10,378.13 = 4,163.36/x
  3. Step 3: Cross multiply
    7,520.22x = 10,378.13 × 4,163.36
  4. Step 4: Simplify right side
    7,520.22x = 43,207,818.61
  5. Step 5: Solve for x
    x = 43,207,818.61/7,520.22
  6. Step 6: Final answer
    x = 5,745.55

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Half scale
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Double scale
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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.