Home / 18,218.94-27,331.52-8,359.06

Finding the Fourth Proportional to 18,218.94, 27,331.52 and 8,359.06

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Solution

The fourth proportional to 18,218.94, 27,331.52 and 8,359.06 is: 12,540.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.94 : 27,331.52 = 8,359.06 : x
  2. Step 2: Convert to fraction form
    18,218.94/27,331.52 = 8,359.06/x
  3. Step 3: Cross multiply
    18,218.94x = 27,331.52 × 8,359.06
  4. Step 4: Simplify right side
    18,218.94x = 228,465,815.57
  5. Step 5: Solve for x
    x = 228,465,815.57/18,218.94
  6. Step 6: Final answer
    x = 12,540.02

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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.