Home / 9,109.80-13,661.19-2,868.48

Finding the Fourth Proportional to 9,109.80, 13,661.19 and 2,868.48

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Solution

The fourth proportional to 9,109.80, 13,661.19 and 2,868.48 is: 4,301.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.80 : 13,661.19 = 2,868.48 : x
  2. Step 2: Convert to fraction form
    9,109.80/13,661.19 = 2,868.48/x
  3. Step 3: Cross multiply
    9,109.80x = 13,661.19 × 2,868.48
  4. Step 4: Simplify right side
    9,109.80x = 39,186,850.29
  5. Step 5: Solve for x
    x = 39,186,850.29/9,109.80
  6. Step 6: Final answer
    x = 4,301.61

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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.