Home / 18,311.28-27,474.48-8,818.80

Finding the Fourth Proportional to 18,311.28, 27,474.48 and 8,818.80

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Solution

The fourth proportional to 18,311.28, 27,474.48 and 8,818.80 is: 13,231.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.28 : 27,474.48 = 8,818.80 : x
  2. Step 2: Convert to fraction form
    18,311.28/27,474.48 = 8,818.80/x
  3. Step 3: Cross multiply
    18,311.28x = 27,474.48 × 8,818.80
  4. Step 4: Simplify right side
    18,311.28x = 242,291,944.22
  5. Step 5: Solve for x
    x = 242,291,944.22/18,311.28
  6. Step 6: Final answer
    x = 13,231.84

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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.