Home / 8,451.74-12,680.62-3,771.33

Finding the Fourth Proportional to 8,451.74, 12,680.62 and 3,771.33

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Solution

The fourth proportional to 8,451.74, 12,680.62 and 3,771.33 is: 5,658.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.74 : 12,680.62 = 3,771.33 : x
  2. Step 2: Convert to fraction form
    8,451.74/12,680.62 = 3,771.33/x
  3. Step 3: Cross multiply
    8,451.74x = 12,680.62 × 3,771.33
  4. Step 4: Simplify right side
    8,451.74x = 47,822,745.64
  5. Step 5: Solve for x
    x = 47,822,745.64/8,451.74
  6. Step 6: Final answer
    x = 5,658.33

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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.