Home / 11,990.24-17,985.42-3,104.94

Finding the Fourth Proportional to 11,990.24, 17,985.42 and 3,104.94

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Solution

The fourth proportional to 11,990.24, 17,985.42 and 3,104.94 is: 4,657.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.24 : 17,985.42 = 3,104.94 : x
  2. Step 2: Convert to fraction form
    11,990.24/17,985.42 = 3,104.94/x
  3. Step 3: Cross multiply
    11,990.24x = 17,985.42 × 3,104.94
  4. Step 4: Simplify right side
    11,990.24x = 55,843,717.42
  5. Step 5: Solve for x
    x = 55,843,717.42/11,990.24
  6. Step 6: Final answer
    x = 4,657.43

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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.