Home / 11,962.86-17,942.28-3,640.86

Finding the Fourth Proportional to 11,962.86, 17,942.28 and 3,640.86

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Solution

The fourth proportional to 11,962.86, 17,942.28 and 3,640.86 is: 5,460.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,962.86 : 17,942.28 = 3,640.86 : x
  2. Step 2: Convert to fraction form
    11,962.86/17,942.28 = 3,640.86/x
  3. Step 3: Cross multiply
    11,962.86x = 17,942.28 × 3,640.86
  4. Step 4: Simplify right side
    11,962.86x = 65,325,329.56
  5. Step 5: Solve for x
    x = 65,325,329.56/11,962.86
  6. Step 6: Final answer
    x = 5,460.68

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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.