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Finding the Fourth Proportional to 11,995.86, 17,993.39 and 3,230.45

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Solution

The fourth proportional to 11,995.86, 17,993.39 and 3,230.45 is: 4,845.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,995.86 : 17,993.39 = 3,230.45 : x
  2. Step 2: Convert to fraction form
    11,995.86/17,993.39 = 3,230.45/x
  3. Step 3: Cross multiply
    11,995.86x = 17,993.39 × 3,230.45
  4. Step 4: Simplify right side
    11,995.86x = 58,126,640.61
  5. Step 5: Solve for x
    x = 58,126,640.61/11,995.86
  6. Step 6: Final answer
    x = 4,845.56

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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.