Home / 18,778.98-25,915.38-11,609.94

Finding the Fourth Proportional to 18,778.98, 25,915.38 and 11,609.94

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Solution

The fourth proportional to 18,778.98, 25,915.38 and 11,609.94 is: 16,021.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778.98 : 25,915.38 = 11,609.94 : x
  2. Step 2: Convert to fraction form
    18,778.98/25,915.38 = 11,609.94/x
  3. Step 3: Cross multiply
    18,778.98x = 25,915.38 × 11,609.94
  4. Step 4: Simplify right side
    18,778.98x = 300,876,006.88
  5. Step 5: Solve for x
    x = 300,876,006.88/18,778.98
  6. Step 6: Final answer
    x = 16,021.96

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1.5x scale

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.