Home / 11,821.44-17,734.56-4,425.72

Finding the Fourth Proportional to 11,821.44, 17,734.56 and 4,425.72

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Solution

The fourth proportional to 11,821.44, 17,734.56 and 4,425.72 is: 6,639.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.44 : 17,734.56 = 4,425.72 : x
  2. Step 2: Convert to fraction form
    11,821.44/17,734.56 = 4,425.72/x
  3. Step 3: Cross multiply
    11,821.44x = 17,734.56 × 4,425.72
  4. Step 4: Simplify right side
    11,821.44x = 78,488,196.88
  5. Step 5: Solve for x
    x = 78,488,196.88/11,821.44
  6. Step 6: Final answer
    x = 6,639.48

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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.