Home / 12,400.46-18,601.87-4,080.54

Finding the Fourth Proportional to 12,400.46, 18,601.87 and 4,080.54

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Solution

The fourth proportional to 12,400.46, 18,601.87 and 4,080.54 is: 6,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.46 : 18,601.87 = 4,080.54 : x
  2. Step 2: Convert to fraction form
    12,400.46/18,601.87 = 4,080.54/x
  3. Step 3: Cross multiply
    12,400.46x = 18,601.87 × 4,080.54
  4. Step 4: Simplify right side
    12,400.46x = 75,905,674.61
  5. Step 5: Solve for x
    x = 75,905,674.61/12,400.46
  6. Step 6: Final answer
    x = 6,121.20

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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.