Home / 11,946.20-17,914.80-3,623.78

Finding the Fourth Proportional to 11,946.20, 17,914.80 and 3,623.78

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Solution

The fourth proportional to 11,946.20, 17,914.80 and 3,623.78 is: 5,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,946.20 : 17,914.80 = 3,623.78 : x
  2. Step 2: Convert to fraction form
    11,946.20/17,914.80 = 3,623.78/x
  3. Step 3: Cross multiply
    11,946.20x = 17,914.80 × 3,623.78
  4. Step 4: Simplify right side
    11,946.20x = 64,919,293.94
  5. Step 5: Solve for x
    x = 64,919,293.94/11,946.20
  6. Step 6: Final answer
    x = 5,434.30

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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.