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Finding the Fourth Proportional to 8,379.88, 12,571.62 and 2,832.96

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Solution

The fourth proportional to 8,379.88, 12,571.62 and 2,832.96 is: 4,250.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.88 : 12,571.62 = 2,832.96 : x
  2. Step 2: Convert to fraction form
    8,379.88/12,571.62 = 2,832.96/x
  3. Step 3: Cross multiply
    8,379.88x = 12,571.62 × 2,832.96
  4. Step 4: Simplify right side
    8,379.88x = 35,614,896.60
  5. Step 5: Solve for x
    x = 35,614,896.60/8,379.88
  6. Step 6: Final answer
    x = 4,250.05

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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.