Home / 11,145.75-16,721.46-3,354.90

Finding the Fourth Proportional to 11,145.75, 16,721.46 and 3,354.90

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Solution

The fourth proportional to 11,145.75, 16,721.46 and 3,354.90 is: 5,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.75 : 16,721.46 = 3,354.90 : x
  2. Step 2: Convert to fraction form
    11,145.75/16,721.46 = 3,354.90/x
  3. Step 3: Cross multiply
    11,145.75x = 16,721.46 × 3,354.90
  4. Step 4: Simplify right side
    11,145.75x = 56,098,826.15
  5. Step 5: Solve for x
    x = 56,098,826.15/11,145.75
  6. Step 6: Final answer
    x = 5,033.20

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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.