Home / 11,921.75-17,887.68-5,995.50

Finding the Fourth Proportional to 11,921.75, 17,887.68 and 5,995.50

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Solution

The fourth proportional to 11,921.75, 17,887.68 and 5,995.50 is: 8,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921.75 : 17,887.68 = 5,995.50 : x
  2. Step 2: Convert to fraction form
    11,921.75/17,887.68 = 5,995.50/x
  3. Step 3: Cross multiply
    11,921.75x = 17,887.68 × 5,995.50
  4. Step 4: Simplify right side
    11,921.75x = 107,245,585.44
  5. Step 5: Solve for x
    x = 107,245,585.44/11,921.75
  6. Step 6: Final answer
    x = 8,995.80

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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.