Home / 11,989.67-17,981.98-3,224.66

Finding the Fourth Proportional to 11,989.67, 17,981.98 and 3,224.66

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Solution

The fourth proportional to 11,989.67, 17,981.98 and 3,224.66 is: 4,836.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.67 : 17,981.98 = 3,224.66 : x
  2. Step 2: Convert to fraction form
    11,989.67/17,981.98 = 3,224.66/x
  3. Step 3: Cross multiply
    11,989.67x = 17,981.98 × 3,224.66
  4. Step 4: Simplify right side
    11,989.67x = 57,985,673.66
  5. Step 5: Solve for x
    x = 57,985,673.66/11,989.67
  6. Step 6: Final answer
    x = 4,836.30

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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.