Home / 7,986.48-11,973.24-2,791.68

Finding the Fourth Proportional to 7,986.48, 11,973.24 and 2,791.68

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Solution

The fourth proportional to 7,986.48, 11,973.24 and 2,791.68 is: 4,185.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.48 : 11,973.24 = 2,791.68 : x
  2. Step 2: Convert to fraction form
    7,986.48/11,973.24 = 2,791.68/x
  3. Step 3: Cross multiply
    7,986.48x = 11,973.24 × 2,791.68
  4. Step 4: Simplify right side
    7,986.48x = 33,425,454.64
  5. Step 5: Solve for x
    x = 33,425,454.64/7,986.48
  6. Step 6: Final answer
    x = 4,185.25

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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.