Home / 8,121.45-12,183.45-3,441.48

Finding the Fourth Proportional to 8,121.45, 12,183.45 and 3,441.48

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Solution

The fourth proportional to 8,121.45, 12,183.45 and 3,441.48 is: 5,162.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.45 : 12,183.45 = 3,441.48 : x
  2. Step 2: Convert to fraction form
    8,121.45/12,183.45 = 3,441.48/x
  3. Step 3: Cross multiply
    8,121.45x = 12,183.45 × 3,441.48
  4. Step 4: Simplify right side
    8,121.45x = 41,929,099.51
  5. Step 5: Solve for x
    x = 41,929,099.51/8,121.45
  6. Step 6: Final answer
    x = 5,162.76

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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.