Home / 11,121.36-16,684.47-3,329.56

Finding the Fourth Proportional to 11,121.36, 16,684.47 and 3,329.56

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Solution

The fourth proportional to 11,121.36, 16,684.47 and 3,329.56 is: 4,995.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.36 : 16,684.47 = 3,329.56 : x
  2. Step 2: Convert to fraction form
    11,121.36/16,684.47 = 3,329.56/x
  3. Step 3: Cross multiply
    11,121.36x = 16,684.47 × 3,329.56
  4. Step 4: Simplify right side
    11,121.36x = 55,551,943.93
  5. Step 5: Solve for x
    x = 55,551,943.93/11,121.36
  6. Step 6: Final answer
    x = 4,995.07

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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.