Home / 13,824.85-20,738.28-5,919.65

Finding the Fourth Proportional to 13,824.85, 20,738.28 and 5,919.65

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Solution

The fourth proportional to 13,824.85, 20,738.28 and 5,919.65 is: 8,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.85 : 20,738.28 = 5,919.65 : x
  2. Step 2: Convert to fraction form
    13,824.85/20,738.28 = 5,919.65/x
  3. Step 3: Cross multiply
    13,824.85x = 20,738.28 × 5,919.65
  4. Step 4: Simplify right side
    13,824.85x = 122,763,359.20
  5. Step 5: Solve for x
    x = 122,763,359.20/13,824.85
  6. Step 6: Final answer
    x = 8,879.91

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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.