Home / 11,989.91-17,984.87-3,225.71

Finding the Fourth Proportional to 11,989.91, 17,984.87 and 3,225.71

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Solution

The fourth proportional to 11,989.91, 17,984.87 and 3,225.71 is: 4,838.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.91 : 17,984.87 = 3,225.71 : x
  2. Step 2: Convert to fraction form
    11,989.91/17,984.87 = 3,225.71/x
  3. Step 3: Cross multiply
    11,989.91x = 17,984.87 × 3,225.71
  4. Step 4: Simplify right side
    11,989.91x = 58,013,868.95
  5. Step 5: Solve for x
    x = 58,013,868.95/11,989.91
  6. Step 6: Final answer
    x = 4,838.56

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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.