Home / 13,584.86-20,380.22-4,224.70

Finding the Fourth Proportional to 13,584.86, 20,380.22 and 4,224.70

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Solution

The fourth proportional to 13,584.86, 20,380.22 and 4,224.70 is: 6,337.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.86 : 20,380.22 = 4,224.70 : x
  2. Step 2: Convert to fraction form
    13,584.86/20,380.22 = 4,224.70/x
  3. Step 3: Cross multiply
    13,584.86x = 20,380.22 × 4,224.70
  4. Step 4: Simplify right side
    13,584.86x = 86,100,224.09
  5. Step 5: Solve for x
    x = 86,100,224.09/13,584.86
  6. Step 6: Final answer
    x = 6,337.95

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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.