Home / 11,916.99-17,880.39-4,131.27

Finding the Fourth Proportional to 11,916.99, 17,880.39 and 4,131.27

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Solution

The fourth proportional to 11,916.99, 17,880.39 and 4,131.27 is: 6,198.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.99 : 17,880.39 = 4,131.27 : x
  2. Step 2: Convert to fraction form
    11,916.99/17,880.39 = 4,131.27/x
  3. Step 3: Cross multiply
    11,916.99x = 17,880.39 × 4,131.27
  4. Step 4: Simplify right side
    11,916.99x = 73,868,718.80
  5. Step 5: Solve for x
    x = 73,868,718.80/11,916.99
  6. Step 6: Final answer
    x = 6,198.61

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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.