Home / 12,041.78-18,049.46-6,198.70

Finding the Fourth Proportional to 12,041.78, 18,049.46 and 6,198.70

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Solution

The fourth proportional to 12,041.78, 18,049.46 and 6,198.70 is: 9,291.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,041.78 : 18,049.46 = 6,198.70 : x
  2. Step 2: Convert to fraction form
    12,041.78/18,049.46 = 6,198.70/x
  3. Step 3: Cross multiply
    12,041.78x = 18,049.46 × 6,198.70
  4. Step 4: Simplify right side
    12,041.78x = 111,883,187.70
  5. Step 5: Solve for x
    x = 111,883,187.70/12,041.78
  6. Step 6: Final answer
    x = 9,291.25

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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.