Home / 8,004.46-11,990.59-3,989.73

Finding the Fourth Proportional to 8,004.46, 11,990.59 and 3,989.73

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Solution

The fourth proportional to 8,004.46, 11,990.59 and 3,989.73 is: 5,976.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,004.46 : 11,990.59 = 3,989.73 : x
  2. Step 2: Convert to fraction form
    8,004.46/11,990.59 = 3,989.73/x
  3. Step 3: Cross multiply
    8,004.46x = 11,990.59 × 3,989.73
  4. Step 4: Simplify right side
    8,004.46x = 47,839,216.64
  5. Step 5: Solve for x
    x = 47,839,216.64/8,004.46
  6. Step 6: Final answer
    x = 5,976.57

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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.