Home / 18,130.29-27,190.49-4,979.54

Finding the Fourth Proportional to 18,130.29, 27,190.49 and 4,979.54

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Solution

The fourth proportional to 18,130.29, 27,190.49 and 4,979.54 is: 7,467.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.29 : 27,190.49 = 4,979.54 : x
  2. Step 2: Convert to fraction form
    18,130.29/27,190.49 = 4,979.54/x
  3. Step 3: Cross multiply
    18,130.29x = 27,190.49 × 4,979.54
  4. Step 4: Simplify right side
    18,130.29x = 135,395,971.72
  5. Step 5: Solve for x
    x = 135,395,971.72/18,130.29
  6. Step 6: Final answer
    x = 7,467.94

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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.