Home / 11,916.18-16,239.33-11,872.44

Finding the Fourth Proportional to 11,916.18, 16,239.33 and 11,872.44

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Solution

The fourth proportional to 11,916.18, 16,239.33 and 11,872.44 is: 16,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.18 : 16,239.33 = 11,872.44 : x
  2. Step 2: Convert to fraction form
    11,916.18/16,239.33 = 11,872.44/x
  3. Step 3: Cross multiply
    11,916.18x = 16,239.33 × 11,872.44
  4. Step 4: Simplify right side
    11,916.18x = 192,800,471.07
  5. Step 5: Solve for x
    x = 192,800,471.07/11,916.18
  6. Step 6: Final answer
    x = 16,179.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.