Home / 11,311.44-16,960.99-3,915.28

Finding the Fourth Proportional to 11,311.44, 16,960.99 and 3,915.28

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Solution

The fourth proportional to 11,311.44, 16,960.99 and 3,915.28 is: 5,870.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.44 : 16,960.99 = 3,915.28 : x
  2. Step 2: Convert to fraction form
    11,311.44/16,960.99 = 3,915.28/x
  3. Step 3: Cross multiply
    11,311.44x = 16,960.99 × 3,915.28
  4. Step 4: Simplify right side
    11,311.44x = 66,407,024.93
  5. Step 5: Solve for x
    x = 66,407,024.93/11,311.44
  6. Step 6: Final answer
    x = 5,870.78

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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.