Home / 12,099.26-18,155.84-5,078.63

Finding the Fourth Proportional to 12,099.26, 18,155.84 and 5,078.63

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Solution

The fourth proportional to 12,099.26, 18,155.84 and 5,078.63 is: 7,620.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099.26 : 18,155.84 = 5,078.63 : x
  2. Step 2: Convert to fraction form
    12,099.26/18,155.84 = 5,078.63/x
  3. Step 3: Cross multiply
    12,099.26x = 18,155.84 × 5,078.63
  4. Step 4: Simplify right side
    12,099.26x = 92,206,793.70
  5. Step 5: Solve for x
    x = 92,206,793.70/12,099.26
  6. Step 6: Final answer
    x = 7,620.86

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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.