Home / 12,198.84-18,291.70-3,876.60

Finding the Fourth Proportional to 12,198.84, 18,291.70 and 3,876.60

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Solution

The fourth proportional to 12,198.84, 18,291.70 and 3,876.60 is: 5,812.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.84 : 18,291.70 = 3,876.60 : x
  2. Step 2: Convert to fraction form
    12,198.84/18,291.70 = 3,876.60/x
  3. Step 3: Cross multiply
    12,198.84x = 18,291.70 × 3,876.60
  4. Step 4: Simplify right side
    12,198.84x = 70,909,604.22
  5. Step 5: Solve for x
    x = 70,909,604.22/12,198.84
  6. Step 6: Final answer
    x = 5,812.82

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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.