Home / 11,818.56-17,726.46-4,791.42

Finding the Fourth Proportional to 11,818.56, 17,726.46 and 4,791.42

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Solution

The fourth proportional to 11,818.56, 17,726.46 and 4,791.42 is: 7,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.56 : 17,726.46 = 4,791.42 : x
  2. Step 2: Convert to fraction form
    11,818.56/17,726.46 = 4,791.42/x
  3. Step 3: Cross multiply
    11,818.56x = 17,726.46 × 4,791.42
  4. Step 4: Simplify right side
    11,818.56x = 84,934,914.97
  5. Step 5: Solve for x
    x = 84,934,914.97/11,818.56
  6. Step 6: Final answer
    x = 7,186.57

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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.