Home / 11,231.10-16,840.98-3,438.90

Finding the Fourth Proportional to 11,231.10, 16,840.98 and 3,438.90

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Solution

The fourth proportional to 11,231.10, 16,840.98 and 3,438.90 is: 5,156.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,231.10 : 16,840.98 = 3,438.90 : x
  2. Step 2: Convert to fraction form
    11,231.10/16,840.98 = 3,438.90/x
  3. Step 3: Cross multiply
    11,231.10x = 16,840.98 × 3,438.90
  4. Step 4: Simplify right side
    11,231.10x = 57,914,446.12
  5. Step 5: Solve for x
    x = 57,914,446.12/11,231.10
  6. Step 6: Final answer
    x = 5,156.61

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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.