Home / 8,422.17-12,633.25-2,578.02

Finding the Fourth Proportional to 8,422.17, 12,633.25 and 2,578.02

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Solution

The fourth proportional to 8,422.17, 12,633.25 and 2,578.02 is: 3,867.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.17 : 12,633.25 = 2,578.02 : x
  2. Step 2: Convert to fraction form
    8,422.17/12,633.25 = 2,578.02/x
  3. Step 3: Cross multiply
    8,422.17x = 12,633.25 × 2,578.02
  4. Step 4: Simplify right side
    8,422.17x = 32,568,771.17
  5. Step 5: Solve for x
    x = 32,568,771.17/8,422.17
  6. Step 6: Final answer
    x = 3,867.03

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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.