Home / 8,823.15-13,234.86-3,891.78

Finding the Fourth Proportional to 8,823.15, 13,234.86 and 3,891.78

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Solution

The fourth proportional to 8,823.15, 13,234.86 and 3,891.78 is: 5,837.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,823.15 : 13,234.86 = 3,891.78 : x
  2. Step 2: Convert to fraction form
    8,823.15/13,234.86 = 3,891.78/x
  3. Step 3: Cross multiply
    8,823.15x = 13,234.86 × 3,891.78
  4. Step 4: Simplify right side
    8,823.15x = 51,507,163.45
  5. Step 5: Solve for x
    x = 51,507,163.45/8,823.15
  6. Step 6: Final answer
    x = 5,837.73

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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.