Home / 11,976.55-17,963.46-3,210.78

Finding the Fourth Proportional to 11,976.55, 17,963.46 and 3,210.78

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Solution

The fourth proportional to 11,976.55, 17,963.46 and 3,210.78 is: 4,815.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,976.55 : 17,963.46 = 3,210.78 : x
  2. Step 2: Convert to fraction form
    11,976.55/17,963.46 = 3,210.78/x
  3. Step 3: Cross multiply
    11,976.55x = 17,963.46 × 3,210.78
  4. Step 4: Simplify right side
    11,976.55x = 57,676,702.04
  5. Step 5: Solve for x
    x = 57,676,702.04/11,976.55
  6. Step 6: Final answer
    x = 4,815.80

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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.