Home / 12,163.14-18,246.60-5,919.30

Finding the Fourth Proportional to 12,163.14, 18,246.60 and 5,919.30

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Solution

The fourth proportional to 12,163.14, 18,246.60 and 5,919.30 is: 8,879.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.14 : 18,246.60 = 5,919.30 : x
  2. Step 2: Convert to fraction form
    12,163.14/18,246.60 = 5,919.30/x
  3. Step 3: Cross multiply
    12,163.14x = 18,246.60 × 5,919.30
  4. Step 4: Simplify right side
    12,163.14x = 108,007,099.38
  5. Step 5: Solve for x
    x = 108,007,099.38/12,163.14
  6. Step 6: Final answer
    x = 8,879.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.