Home / 18,081.63-27,119.39-4,930.97

Finding the Fourth Proportional to 18,081.63, 27,119.39 and 4,930.97

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Solution

The fourth proportional to 18,081.63, 27,119.39 and 4,930.97 is: 7,395.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,081.63 : 27,119.39 = 4,930.97 : x
  2. Step 2: Convert to fraction form
    18,081.63/27,119.39 = 4,930.97/x
  3. Step 3: Cross multiply
    18,081.63x = 27,119.39 × 4,930.97
  4. Step 4: Simplify right side
    18,081.63x = 133,724,738.26
  5. Step 5: Solve for x
    x = 133,724,738.26/18,081.63
  6. Step 6: Final answer
    x = 7,395.61

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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.