Home / 8,412.27-12,620.36-2,568.87

Finding the Fourth Proportional to 8,412.27, 12,620.36 and 2,568.87

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Solution

The fourth proportional to 8,412.27, 12,620.36 and 2,568.87 is: 3,853.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.27 : 12,620.36 = 2,568.87 : x
  2. Step 2: Convert to fraction form
    8,412.27/12,620.36 = 2,568.87/x
  3. Step 3: Cross multiply
    8,412.27x = 12,620.36 × 2,568.87
  4. Step 4: Simplify right side
    8,412.27x = 32,420,064.19
  5. Step 5: Solve for x
    x = 32,420,064.19/8,412.27
  6. Step 6: Final answer
    x = 3,853.90

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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.