Home / 9,111.45-13,661.49-3,843.75

Finding the Fourth Proportional to 9,111.45, 13,661.49 and 3,843.75

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Solution

The fourth proportional to 9,111.45, 13,661.49 and 3,843.75 is: 5,763.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,111.45 : 13,661.49 = 3,843.75 : x
  2. Step 2: Convert to fraction form
    9,111.45/13,661.49 = 3,843.75/x
  3. Step 3: Cross multiply
    9,111.45x = 13,661.49 × 3,843.75
  4. Step 4: Simplify right side
    9,111.45x = 52,511,352.19
  5. Step 5: Solve for x
    x = 52,511,352.19/9,111.45
  6. Step 6: Final answer
    x = 5,763.23

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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.