Home / 18,505.35-27,772.62-6,826.77

Finding the Fourth Proportional to 18,505.35, 27,772.62 and 6,826.77

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Solution

The fourth proportional to 18,505.35, 27,772.62 and 6,826.77 is: 10,245.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.35 : 27,772.62 = 6,826.77 : x
  2. Step 2: Convert to fraction form
    18,505.35/27,772.62 = 6,826.77/x
  3. Step 3: Cross multiply
    18,505.35x = 27,772.62 × 6,826.77
  4. Step 4: Simplify right side
    18,505.35x = 189,597,289.04
  5. Step 5: Solve for x
    x = 189,597,289.04/18,505.35
  6. Step 6: Final answer
    x = 10,245.54

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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.