Home / 7,989.43-11,985.81-2,724.03

Finding the Fourth Proportional to 7,989.43, 11,985.81 and 2,724.03

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Solution

The fourth proportional to 7,989.43, 11,985.81 and 2,724.03 is: 4,086.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.43 : 11,985.81 = 2,724.03 : x
  2. Step 2: Convert to fraction form
    7,989.43/11,985.81 = 2,724.03/x
  3. Step 3: Cross multiply
    7,989.43x = 11,985.81 × 2,724.03
  4. Step 4: Simplify right side
    7,989.43x = 32,649,706.01
  5. Step 5: Solve for x
    x = 32,649,706.01/7,989.43
  6. Step 6: Final answer
    x = 4,086.61

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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.