Home / 11,818.63-17,726.92-3,918.55

Finding the Fourth Proportional to 11,818.63, 17,726.92 and 3,918.55

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Solution

The fourth proportional to 11,818.63, 17,726.92 and 3,918.55 is: 5,877.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.63 : 17,726.92 = 3,918.55 : x
  2. Step 2: Convert to fraction form
    11,818.63/17,726.92 = 3,918.55/x
  3. Step 3: Cross multiply
    11,818.63x = 17,726.92 × 3,918.55
  4. Step 4: Simplify right side
    11,818.63x = 69,463,735.04
  5. Step 5: Solve for x
    x = 69,463,735.04/11,818.63
  6. Step 6: Final answer
    x = 5,877.48

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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.