Home / 11,824.20-17,729.55-4,428.90

Finding the Fourth Proportional to 11,824.20, 17,729.55 and 4,428.90

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Solution

The fourth proportional to 11,824.20, 17,729.55 and 4,428.90 is: 6,640.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,824.20 : 17,729.55 = 4,428.90 : x
  2. Step 2: Convert to fraction form
    11,824.20/17,729.55 = 4,428.90/x
  3. Step 3: Cross multiply
    11,824.20x = 17,729.55 × 4,428.90
  4. Step 4: Simplify right side
    11,824.20x = 78,522,404.00
  5. Step 5: Solve for x
    x = 78,522,404.00/11,824.20
  6. Step 6: Final answer
    x = 6,640.82

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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.