Home / 11,818.98-17,729.28-4,026.78

Finding the Fourth Proportional to 11,818.98, 17,729.28 and 4,026.78

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Solution

The fourth proportional to 11,818.98, 17,729.28 and 4,026.78 is: 6,040.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.98 : 17,729.28 = 4,026.78 : x
  2. Step 2: Convert to fraction form
    11,818.98/17,729.28 = 4,026.78/x
  3. Step 3: Cross multiply
    11,818.98x = 17,729.28 × 4,026.78
  4. Step 4: Simplify right side
    11,818.98x = 71,391,910.12
  5. Step 5: Solve for x
    x = 71,391,910.12/11,818.98
  6. Step 6: Final answer
    x = 6,040.45

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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.