Home / 11,918.74-17,877.27-3,153.46

Finding the Fourth Proportional to 11,918.74, 17,877.27 and 3,153.46

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Solution

The fourth proportional to 11,918.74, 17,877.27 and 3,153.46 is: 4,729.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.74 : 17,877.27 = 3,153.46 : x
  2. Step 2: Convert to fraction form
    11,918.74/17,877.27 = 3,153.46/x
  3. Step 3: Cross multiply
    11,918.74x = 17,877.27 × 3,153.46
  4. Step 4: Simplify right side
    11,918.74x = 56,375,255.85
  5. Step 5: Solve for x
    x = 56,375,255.85/11,918.74
  6. Step 6: Final answer
    x = 4,729.97

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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.