Home / 11,982.01-17,981.01-4,190.82

Finding the Fourth Proportional to 11,982.01, 17,981.01 and 4,190.82

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Solution

The fourth proportional to 11,982.01, 17,981.01 and 4,190.82 is: 6,289.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,982.01 : 17,981.01 = 4,190.82 : x
  2. Step 2: Convert to fraction form
    11,982.01/17,981.01 = 4,190.82/x
  3. Step 3: Cross multiply
    11,982.01x = 17,981.01 × 4,190.82
  4. Step 4: Simplify right side
    11,982.01x = 75,355,176.33
  5. Step 5: Solve for x
    x = 75,355,176.33/11,982.01
  6. Step 6: Final answer
    x = 6,289.03

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1.5x scale

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.