Home / 12,604.70-18,910.56-3,839.60

Finding the Fourth Proportional to 12,604.70, 18,910.56 and 3,839.60

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Solution

The fourth proportional to 12,604.70, 18,910.56 and 3,839.60 is: 5,760.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,604.70 : 18,910.56 = 3,839.60 : x
  2. Step 2: Convert to fraction form
    12,604.70/18,910.56 = 3,839.60/x
  3. Step 3: Cross multiply
    12,604.70x = 18,910.56 × 3,839.60
  4. Step 4: Simplify right side
    12,604.70x = 72,608,986.18
  5. Step 5: Solve for x
    x = 72,608,986.18/12,604.70
  6. Step 6: Final answer
    x = 5,760.47

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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.