Home / 11,211.26-16,818.74-3,418.25

Finding the Fourth Proportional to 11,211.26, 16,818.74 and 3,418.25

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Solution

The fourth proportional to 11,211.26, 16,818.74 and 3,418.25 is: 5,127.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.26 : 16,818.74 = 3,418.25 : x
  2. Step 2: Convert to fraction form
    11,211.26/16,818.74 = 3,418.25/x
  3. Step 3: Cross multiply
    11,211.26x = 16,818.74 × 3,418.25
  4. Step 4: Simplify right side
    11,211.26x = 57,490,640.91
  5. Step 5: Solve for x
    x = 57,490,640.91/11,211.26
  6. Step 6: Final answer
    x = 5,127.94

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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.