Home / 12,568.68-18,845.27-4,247.91

Finding the Fourth Proportional to 12,568.68, 18,845.27 and 4,247.91

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Solution

The fourth proportional to 12,568.68, 18,845.27 and 4,247.91 is: 6,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.68 : 18,845.27 = 4,247.91 : x
  2. Step 2: Convert to fraction form
    12,568.68/18,845.27 = 4,247.91/x
  3. Step 3: Cross multiply
    12,568.68x = 18,845.27 × 4,247.91
  4. Step 4: Simplify right side
    12,568.68x = 80,053,010.89
  5. Step 5: Solve for x
    x = 80,053,010.89/12,568.68
  6. Step 6: Final answer
    x = 6,369.25

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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.