Home / 7,999.72-11,991.38-3,068.03

Finding the Fourth Proportional to 7,999.72, 11,991.38 and 3,068.03

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Solution

The fourth proportional to 7,999.72, 11,991.38 and 3,068.03 is: 4,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.72 : 11,991.38 = 3,068.03 : x
  2. Step 2: Convert to fraction form
    7,999.72/11,991.38 = 3,068.03/x
  3. Step 3: Cross multiply
    7,999.72x = 11,991.38 × 3,068.03
  4. Step 4: Simplify right side
    7,999.72x = 36,789,928.22
  5. Step 5: Solve for x
    x = 36,789,928.22/7,999.72
  6. Step 6: Final answer
    x = 4,598.90

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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.