Home / 18,221.42-27,319.83-8,355.35

Finding the Fourth Proportional to 18,221.42, 27,319.83 and 8,355.35

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Solution

The fourth proportional to 18,221.42, 27,319.83 and 8,355.35 is: 12,527.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.42 : 27,319.83 = 8,355.35 : x
  2. Step 2: Convert to fraction form
    18,221.42/27,319.83 = 8,355.35/x
  3. Step 3: Cross multiply
    18,221.42x = 27,319.83 × 8,355.35
  4. Step 4: Simplify right side
    18,221.42x = 228,266,604.99
  5. Step 5: Solve for x
    x = 228,266,604.99/18,221.42
  6. Step 6: Final answer
    x = 12,527.38

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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.