Home / 7,991.02-11,987.27-2,724.25

Finding the Fourth Proportional to 7,991.02, 11,987.27 and 2,724.25

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Solution

The fourth proportional to 7,991.02, 11,987.27 and 2,724.25 is: 4,086.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.02 : 11,987.27 = 2,724.25 : x
  2. Step 2: Convert to fraction form
    7,991.02/11,987.27 = 2,724.25/x
  3. Step 3: Cross multiply
    7,991.02x = 11,987.27 × 2,724.25
  4. Step 4: Simplify right side
    7,991.02x = 32,656,320.30
  5. Step 5: Solve for x
    x = 32,656,320.30/7,991.02
  6. Step 6: Final answer
    x = 4,086.63

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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.