Home / 18,055.05-27,025.84-12,399.61

Finding the Fourth Proportional to 18,055.05, 27,025.84 and 12,399.61

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Solution

The fourth proportional to 18,055.05, 27,025.84 and 12,399.61 is: 18,560.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,055.05 : 27,025.84 = 12,399.61 : x
  2. Step 2: Convert to fraction form
    18,055.05/27,025.84 = 12,399.61/x
  3. Step 3: Cross multiply
    18,055.05x = 27,025.84 × 12,399.61
  4. Step 4: Simplify right side
    18,055.05x = 335,109,728.77
  5. Step 5: Solve for x
    x = 335,109,728.77/18,055.05
  6. Step 6: Final answer
    x = 18,560.44

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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.