Home / 7,999.57-11,983.29-3,984.85

Finding the Fourth Proportional to 7,999.57, 11,983.29 and 3,984.85

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Solution

The fourth proportional to 7,999.57, 11,983.29 and 3,984.85 is: 5,969.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.57 : 11,983.29 = 3,984.85 : x
  2. Step 2: Convert to fraction form
    7,999.57/11,983.29 = 3,984.85/x
  3. Step 3: Cross multiply
    7,999.57x = 11,983.29 × 3,984.85
  4. Step 4: Simplify right side
    7,999.57x = 47,751,613.19
  5. Step 5: Solve for x
    x = 47,751,613.19/7,999.57
  6. Step 6: Final answer
    x = 5,969.27

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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.