Home / 18,661.23-27,991.88-5,522.83

Finding the Fourth Proportional to 18,661.23, 27,991.88 and 5,522.83

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Solution

The fourth proportional to 18,661.23, 27,991.88 and 5,522.83 is: 8,284.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661.23 : 27,991.88 = 5,522.83 : x
  2. Step 2: Convert to fraction form
    18,661.23/27,991.88 = 5,522.83/x
  3. Step 3: Cross multiply
    18,661.23x = 27,991.88 × 5,522.83
  4. Step 4: Simplify right side
    18,661.23x = 154,594,394.62
  5. Step 5: Solve for x
    x = 154,594,394.62/18,661.23
  6. Step 6: Final answer
    x = 8,284.26

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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.