Home / 12,211.26-18,318.21-4,418.34

Finding the Fourth Proportional to 12,211.26, 18,318.21 and 4,418.34

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Solution

The fourth proportional to 12,211.26, 18,318.21 and 4,418.34 is: 6,627.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211.26 : 18,318.21 = 4,418.34 : x
  2. Step 2: Convert to fraction form
    12,211.26/18,318.21 = 4,418.34/x
  3. Step 3: Cross multiply
    12,211.26x = 18,318.21 × 4,418.34
  4. Step 4: Simplify right side
    12,211.26x = 80,936,079.97
  5. Step 5: Solve for x
    x = 80,936,079.97/12,211.26
  6. Step 6: Final answer
    x = 6,627.99

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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.