Home / 7,679.70-11,504.43-3,984.33

Finding the Fourth Proportional to 7,679.70, 11,504.43 and 3,984.33

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Solution

The fourth proportional to 7,679.70, 11,504.43 and 3,984.33 is: 5,968.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.70 : 11,504.43 = 3,984.33 : x
  2. Step 2: Convert to fraction form
    7,679.70/11,504.43 = 3,984.33/x
  3. Step 3: Cross multiply
    7,679.70x = 11,504.43 × 3,984.33
  4. Step 4: Simplify right side
    7,679.70x = 45,837,445.58
  5. Step 5: Solve for x
    x = 45,837,445.58/7,679.70
  6. Step 6: Final answer
    x = 5,968.65

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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.