Home / 11,138.26-16,702.73-4,116.78

Finding the Fourth Proportional to 11,138.26, 16,702.73 and 4,116.78

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Solution

The fourth proportional to 11,138.26, 16,702.73 and 4,116.78 is: 6,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.26 : 16,702.73 = 4,116.78 : x
  2. Step 2: Convert to fraction form
    11,138.26/16,702.73 = 4,116.78/x
  3. Step 3: Cross multiply
    11,138.26x = 16,702.73 × 4,116.78
  4. Step 4: Simplify right side
    11,138.26x = 68,761,464.81
  5. Step 5: Solve for x
    x = 68,761,464.81/11,138.26
  6. Step 6: Final answer
    x = 6,173.45

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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.