Home / 18,189.05-27,245.24-8,336.61

Finding the Fourth Proportional to 18,189.05, 27,245.24 and 8,336.61

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Solution

The fourth proportional to 18,189.05, 27,245.24 and 8,336.61 is: 12,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,189.05 : 27,245.24 = 8,336.61 : x
  2. Step 2: Convert to fraction form
    18,189.05/27,245.24 = 8,336.61/x
  3. Step 3: Cross multiply
    18,189.05x = 27,245.24 × 8,336.61
  4. Step 4: Simplify right side
    18,189.05x = 227,132,898.55
  5. Step 5: Solve for x
    x = 227,132,898.55/18,189.05
  6. Step 6: Final answer
    x = 12,487.35

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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.