Home / 8,629.97-12,945.24-2,389.47

Finding the Fourth Proportional to 8,629.97, 12,945.24 and 2,389.47

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Solution

The fourth proportional to 8,629.97, 12,945.24 and 2,389.47 is: 3,584.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.97 : 12,945.24 = 2,389.47 : x
  2. Step 2: Convert to fraction form
    8,629.97/12,945.24 = 2,389.47/x
  3. Step 3: Cross multiply
    8,629.97x = 12,945.24 × 2,389.47
  4. Step 4: Simplify right side
    8,629.97x = 30,932,262.62
  5. Step 5: Solve for x
    x = 30,932,262.62/8,629.97
  6. Step 6: Final answer
    x = 3,584.29

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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.