Home / 11,999.97-18,002.09-4,100.64

Finding the Fourth Proportional to 11,999.97, 18,002.09 and 4,100.64

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Solution

The fourth proportional to 11,999.97, 18,002.09 and 4,100.64 is: 6,151.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.97 : 18,002.09 = 4,100.64 : x
  2. Step 2: Convert to fraction form
    11,999.97/18,002.09 = 4,100.64/x
  3. Step 3: Cross multiply
    11,999.97x = 18,002.09 × 4,100.64
  4. Step 4: Simplify right side
    11,999.97x = 73,820,069.83
  5. Step 5: Solve for x
    x = 73,820,069.83/11,999.97
  6. Step 6: Final answer
    x = 6,151.69

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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.