Home / 7,999.20-11,996.24-2,661.26

Finding the Fourth Proportional to 7,999.20, 11,996.24 and 2,661.26

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Solution

The fourth proportional to 7,999.20, 11,996.24 and 2,661.26 is: 3,991.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.20 : 11,996.24 = 2,661.26 : x
  2. Step 2: Convert to fraction form
    7,999.20/11,996.24 = 2,661.26/x
  3. Step 3: Cross multiply
    7,999.20x = 11,996.24 × 2,661.26
  4. Step 4: Simplify right side
    7,999.20x = 31,925,040.37
  5. Step 5: Solve for x
    x = 31,925,040.37/7,999.20
  6. Step 6: Final answer
    x = 3,991.03

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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.