Home / 18,305.24-27,436.64-8,423.78

Finding the Fourth Proportional to 18,305.24, 27,436.64 and 8,423.78

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Solution

The fourth proportional to 18,305.24, 27,436.64 and 8,423.78 is: 12,625.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.24 : 27,436.64 = 8,423.78 : x
  2. Step 2: Convert to fraction form
    18,305.24/27,436.64 = 8,423.78/x
  3. Step 3: Cross multiply
    18,305.24x = 27,436.64 × 8,423.78
  4. Step 4: Simplify right side
    18,305.24x = 231,120,219.30
  5. Step 5: Solve for x
    x = 231,120,219.30/18,305.24
  6. Step 6: Final answer
    x = 12,625.90

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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.