Home / 11,918.26-17,877.38-4,127.06

Finding the Fourth Proportional to 11,918.26, 17,877.38 and 4,127.06

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Solution

The fourth proportional to 11,918.26, 17,877.38 and 4,127.06 is: 6,190.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.26 : 17,877.38 = 4,127.06 : x
  2. Step 2: Convert to fraction form
    11,918.26/17,877.38 = 4,127.06/x
  3. Step 3: Cross multiply
    11,918.26x = 17,877.38 × 4,127.06
  4. Step 4: Simplify right side
    11,918.26x = 73,781,019.90
  5. Step 5: Solve for x
    x = 73,781,019.90/11,918.26
  6. Step 6: Final answer
    x = 6,190.59

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1.5x scale

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.