Home / 8,382.24-12,568.70-3,455.21

Finding the Fourth Proportional to 8,382.24, 12,568.70 and 3,455.21

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Solution

The fourth proportional to 8,382.24, 12,568.70 and 3,455.21 is: 5,180.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,382.24 : 12,568.70 = 3,455.21 : x
  2. Step 2: Convert to fraction form
    8,382.24/12,568.70 = 3,455.21/x
  3. Step 3: Cross multiply
    8,382.24x = 12,568.70 × 3,455.21
  4. Step 4: Simplify right side
    8,382.24x = 43,427,537.99
  5. Step 5: Solve for x
    x = 43,427,537.99/8,382.24
  6. Step 6: Final answer
    x = 5,180.90

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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.