Home / 18,228.82-27,321.90-8,369.05

Finding the Fourth Proportional to 18,228.82, 27,321.90 and 8,369.05

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Solution

The fourth proportional to 18,228.82, 27,321.90 and 8,369.05 is: 12,543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.82 : 27,321.90 = 8,369.05 : x
  2. Step 2: Convert to fraction form
    18,228.82/27,321.90 = 8,369.05/x
  3. Step 3: Cross multiply
    18,228.82x = 27,321.90 × 8,369.05
  4. Step 4: Simplify right side
    18,228.82x = 228,658,347.20
  5. Step 5: Solve for x
    x = 228,658,347.20/18,228.82
  6. Step 6: Final answer
    x = 12,543.78

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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.