Home / 8,601.18-12,900.87-3,919.83

Finding the Fourth Proportional to 8,601.18, 12,900.87 and 3,919.83

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Solution

The fourth proportional to 8,601.18, 12,900.87 and 3,919.83 is: 5,879.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.18 : 12,900.87 = 3,919.83 : x
  2. Step 2: Convert to fraction form
    8,601.18/12,900.87 = 3,919.83/x
  3. Step 3: Cross multiply
    8,601.18x = 12,900.87 × 3,919.83
  4. Step 4: Simplify right side
    8,601.18x = 50,569,217.25
  5. Step 5: Solve for x
    x = 50,569,217.25/8,601.18
  6. Step 6: Final answer
    x = 5,879.33

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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.