Home / 13,983.10-20,974.62-4,122.48

Finding the Fourth Proportional to 13,983.10, 20,974.62 and 4,122.48

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Solution

The fourth proportional to 13,983.10, 20,974.62 and 4,122.48 is: 6,183.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,983.10 : 20,974.62 = 4,122.48 : x
  2. Step 2: Convert to fraction form
    13,983.10/20,974.62 = 4,122.48/x
  3. Step 3: Cross multiply
    13,983.10x = 20,974.62 × 4,122.48
  4. Step 4: Simplify right side
    13,983.10x = 86,467,451.46
  5. Step 5: Solve for x
    x = 86,467,451.46/13,983.10
  6. Step 6: Final answer
    x = 6,183.71

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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.