Home / 11,466.57-17,198.64-8,120.87

Finding the Fourth Proportional to 11,466.57, 17,198.64 and 8,120.87

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Solution

The fourth proportional to 11,466.57, 17,198.64 and 8,120.87 is: 12,180.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,466.57 : 17,198.64 = 8,120.87 : x
  2. Step 2: Convert to fraction form
    11,466.57/17,198.64 = 8,120.87/x
  3. Step 3: Cross multiply
    11,466.57x = 17,198.64 × 8,120.87
  4. Step 4: Simplify right side
    11,466.57x = 139,667,919.62
  5. Step 5: Solve for x
    x = 139,667,919.62/11,466.57
  6. Step 6: Final answer
    x = 12,180.44

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1.5x scale

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.