Home / 13,345.12-18,414.66-7,375.98

Finding the Fourth Proportional to 13,345.12, 18,414.66 and 7,375.98

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Solution

The fourth proportional to 13,345.12, 18,414.66 and 7,375.98 is: 10,177.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.12 : 18,414.66 = 7,375.98 : x
  2. Step 2: Convert to fraction form
    13,345.12/18,414.66 = 7,375.98/x
  3. Step 3: Cross multiply
    13,345.12x = 18,414.66 × 7,375.98
  4. Step 4: Simplify right side
    13,345.12x = 135,826,163.87
  5. Step 5: Solve for x
    x = 135,826,163.87/13,345.12
  6. Step 6: Final answer
    x = 10,177.96

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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.