Home / 12,132.01-18,198.24-3,811.87

Finding the Fourth Proportional to 12,132.01, 18,198.24 and 3,811.87

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Solution

The fourth proportional to 12,132.01, 18,198.24 and 3,811.87 is: 5,717.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.01 : 18,198.24 = 3,811.87 : x
  2. Step 2: Convert to fraction form
    12,132.01/18,198.24 = 3,811.87/x
  3. Step 3: Cross multiply
    12,132.01x = 18,198.24 × 3,811.87
  4. Step 4: Simplify right side
    12,132.01x = 69,369,325.11
  5. Step 5: Solve for x
    x = 69,369,325.11/12,132.01
  6. Step 6: Final answer
    x = 5,717.88

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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.