Home / 11,990.96-17,986.43-3,225.87

Finding the Fourth Proportional to 11,990.96, 17,986.43 and 3,225.87

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Solution

The fourth proportional to 11,990.96, 17,986.43 and 3,225.87 is: 4,838.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.96 : 17,986.43 = 3,225.87 : x
  2. Step 2: Convert to fraction form
    11,990.96/17,986.43 = 3,225.87/x
  3. Step 3: Cross multiply
    11,990.96x = 17,986.43 × 3,225.87
  4. Step 4: Simplify right side
    11,990.96x = 58,021,913.78
  5. Step 5: Solve for x
    x = 58,021,913.78/11,990.96
  6. Step 6: Final answer
    x = 4,838.81

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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.