Home / 11,990.75-17,985.36-3,669.97

Finding the Fourth Proportional to 11,990.75, 17,985.36 and 3,669.97

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Solution

The fourth proportional to 11,990.75, 17,985.36 and 3,669.97 is: 5,504.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.75 : 17,985.36 = 3,669.97 : x
  2. Step 2: Convert to fraction form
    11,990.75/17,985.36 = 3,669.97/x
  3. Step 3: Cross multiply
    11,990.75x = 17,985.36 × 3,669.97
  4. Step 4: Simplify right side
    11,990.75x = 66,005,713.52
  5. Step 5: Solve for x
    x = 66,005,713.52/11,990.75
  6. Step 6: Final answer
    x = 5,504.72

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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.