Home / 18,127.14-27,190.71-4,979.58

Finding the Fourth Proportional to 18,127.14, 27,190.71 and 4,979.58

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Solution

The fourth proportional to 18,127.14, 27,190.71 and 4,979.58 is: 7,469.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.14 : 27,190.71 = 4,979.58 : x
  2. Step 2: Convert to fraction form
    18,127.14/27,190.71 = 4,979.58/x
  3. Step 3: Cross multiply
    18,127.14x = 27,190.71 × 4,979.58
  4. Step 4: Simplify right side
    18,127.14x = 135,398,315.70
  5. Step 5: Solve for x
    x = 135,398,315.70/18,127.14
  6. Step 6: Final answer
    x = 7,469.37

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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.