Home / 18,211.10-25,136.56-11,837.82

Finding the Fourth Proportional to 18,211.10, 25,136.56 and 11,837.82

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Solution

The fourth proportional to 18,211.10, 25,136.56 and 11,837.82 is: 16,339.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.10 : 25,136.56 = 11,837.82 : x
  2. Step 2: Convert to fraction form
    18,211.10/25,136.56 = 11,837.82/x
  3. Step 3: Cross multiply
    18,211.10x = 25,136.56 × 11,837.82
  4. Step 4: Simplify right side
    18,211.10x = 297,562,072.70
  5. Step 5: Solve for x
    x = 297,562,072.70/18,211.10
  6. Step 6: Final answer
    x = 16,339.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.