Home / 8,389.24-12,583.82-2,149.22

Finding the Fourth Proportional to 8,389.24, 12,583.82 and 2,149.22

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Solution

The fourth proportional to 8,389.24, 12,583.82 and 2,149.22 is: 3,223.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.24 : 12,583.82 = 2,149.22 : x
  2. Step 2: Convert to fraction form
    8,389.24/12,583.82 = 2,149.22/x
  3. Step 3: Cross multiply
    8,389.24x = 12,583.82 × 2,149.22
  4. Step 4: Simplify right side
    8,389.24x = 27,045,434.45
  5. Step 5: Solve for x
    x = 27,045,434.45/8,389.24
  6. Step 6: Final answer
    x = 3,223.83

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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.