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Finding the Fourth Proportional to 11,819.52, 17,745.48 and 7,423.92

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Solution

The fourth proportional to 11,819.52, 17,745.48 and 7,423.92 is: 11,146.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.52 : 17,745.48 = 7,423.92 : x
  2. Step 2: Convert to fraction form
    11,819.52/17,745.48 = 7,423.92/x
  3. Step 3: Cross multiply
    11,819.52x = 17,745.48 × 7,423.92
  4. Step 4: Simplify right side
    11,819.52x = 131,741,023.88
  5. Step 5: Solve for x
    x = 131,741,023.88/11,819.52
  6. Step 6: Final answer
    x = 11,146.06

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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.