Home / 11,412.44-17,121.42-3,621.32

Finding the Fourth Proportional to 11,412.44, 17,121.42 and 3,621.32

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Solution

The fourth proportional to 11,412.44, 17,121.42 and 3,621.32 is: 5,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,412.44 : 17,121.42 = 3,621.32 : x
  2. Step 2: Convert to fraction form
    11,412.44/17,121.42 = 3,621.32/x
  3. Step 3: Cross multiply
    11,412.44x = 17,121.42 × 3,621.32
  4. Step 4: Simplify right side
    11,412.44x = 62,002,055.07
  5. Step 5: Solve for x
    x = 62,002,055.07/11,412.44
  6. Step 6: Final answer
    x = 5,432.85

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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.