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Finding the Fourth Proportional to 8,379.83, 12,575.04 and 4,684.49

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Solution

The fourth proportional to 8,379.83, 12,575.04 and 4,684.49 is: 7,029.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.83 : 12,575.04 = 4,684.49 : x
  2. Step 2: Convert to fraction form
    8,379.83/12,575.04 = 4,684.49/x
  3. Step 3: Cross multiply
    8,379.83x = 12,575.04 × 4,684.49
  4. Step 4: Simplify right side
    8,379.83x = 58,907,650.98
  5. Step 5: Solve for x
    x = 58,907,650.98/8,379.83
  6. Step 6: Final answer
    x = 7,029.69

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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.