Home / 8,568.18-12,847.41-5,107.86

Finding the Fourth Proportional to 8,568.18, 12,847.41 and 5,107.86

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Solution

The fourth proportional to 8,568.18, 12,847.41 and 5,107.86 is: 7,658.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,568.18 : 12,847.41 = 5,107.86 : x
  2. Step 2: Convert to fraction form
    8,568.18/12,847.41 = 5,107.86/x
  3. Step 3: Cross multiply
    8,568.18x = 12,847.41 × 5,107.86
  4. Step 4: Simplify right side
    8,568.18x = 65,622,771.64
  5. Step 5: Solve for x
    x = 65,622,771.64/8,568.18
  6. Step 6: Final answer
    x = 7,658.89

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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.