Home / 8,229.66-12,345.77-2,681.72

Finding the Fourth Proportional to 8,229.66, 12,345.77 and 2,681.72

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Solution

The fourth proportional to 8,229.66, 12,345.77 and 2,681.72 is: 4,022.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229.66 : 12,345.77 = 2,681.72 : x
  2. Step 2: Convert to fraction form
    8,229.66/12,345.77 = 2,681.72/x
  3. Step 3: Cross multiply
    8,229.66x = 12,345.77 × 2,681.72
  4. Step 4: Simplify right side
    8,229.66x = 33,107,843.30
  5. Step 5: Solve for x
    x = 33,107,843.30/8,229.66
  6. Step 6: Final answer
    x = 4,022.99

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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.