Home / 12,204.12-18,311.39-3,884.81

Finding the Fourth Proportional to 12,204.12, 18,311.39 and 3,884.81

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Solution

The fourth proportional to 12,204.12, 18,311.39 and 3,884.81 is: 5,828.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204.12 : 18,311.39 = 3,884.81 : x
  2. Step 2: Convert to fraction form
    12,204.12/18,311.39 = 3,884.81/x
  3. Step 3: Cross multiply
    12,204.12x = 18,311.39 × 3,884.81
  4. Step 4: Simplify right side
    12,204.12x = 71,136,288.50
  5. Step 5: Solve for x
    x = 71,136,288.50/12,204.12
  6. Step 6: Final answer
    x = 5,828.88

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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.