Home / 12,399.46-18,600.37-4,079.54

Finding the Fourth Proportional to 12,399.46, 18,600.37 and 4,079.54

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Solution

The fourth proportional to 12,399.46, 18,600.37 and 4,079.54 is: 6,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.46 : 18,600.37 = 4,079.54 : x
  2. Step 2: Convert to fraction form
    12,399.46/18,600.37 = 4,079.54/x
  3. Step 3: Cross multiply
    12,399.46x = 18,600.37 × 4,079.54
  4. Step 4: Simplify right side
    12,399.46x = 75,880,989.73
  5. Step 5: Solve for x
    x = 75,880,989.73/12,399.46
  6. Step 6: Final answer
    x = 6,119.70

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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.