Home / 18,111.97-27,171.87-5,631.76

Finding the Fourth Proportional to 18,111.97, 27,171.87 and 5,631.76

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Solution

The fourth proportional to 18,111.97, 27,171.87 and 5,631.76 is: 8,448.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.97 : 27,171.87 = 5,631.76 : x
  2. Step 2: Convert to fraction form
    18,111.97/27,171.87 = 5,631.76/x
  3. Step 3: Cross multiply
    18,111.97x = 27,171.87 × 5,631.76
  4. Step 4: Simplify right side
    18,111.97x = 153,025,450.59
  5. Step 5: Solve for x
    x = 153,025,450.59/18,111.97
  6. Step 6: Final answer
    x = 8,448.86

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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.