Home / 12,246.80-18,361.20-3,922.02

Finding the Fourth Proportional to 12,246.80, 18,361.20 and 3,922.02

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Solution

The fourth proportional to 12,246.80, 18,361.20 and 3,922.02 is: 5,880.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,246.80 : 18,361.20 = 3,922.02 : x
  2. Step 2: Convert to fraction form
    12,246.80/18,361.20 = 3,922.02/x
  3. Step 3: Cross multiply
    12,246.80x = 18,361.20 × 3,922.02
  4. Step 4: Simplify right side
    12,246.80x = 72,012,993.62
  5. Step 5: Solve for x
    x = 72,012,993.62/12,246.80
  6. Step 6: Final answer
    x = 5,880.15

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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.