Home / 8,251.20-12,379.62-4,548.72

Finding the Fourth Proportional to 8,251.20, 12,379.62 and 4,548.72

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Solution

The fourth proportional to 8,251.20, 12,379.62 and 4,548.72 is: 6,824.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,251.20 : 12,379.62 = 4,548.72 : x
  2. Step 2: Convert to fraction form
    8,251.20/12,379.62 = 4,548.72/x
  3. Step 3: Cross multiply
    8,251.20x = 12,379.62 × 4,548.72
  4. Step 4: Simplify right side
    8,251.20x = 56,311,425.09
  5. Step 5: Solve for x
    x = 56,311,425.09/8,251.20
  6. Step 6: Final answer
    x = 6,824.63

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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.