Home / 13,968.20-20,951.94-4,107.68

Finding the Fourth Proportional to 13,968.20, 20,951.94 and 4,107.68

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Solution

The fourth proportional to 13,968.20, 20,951.94 and 4,107.68 is: 6,161.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.20 : 20,951.94 = 4,107.68 : x
  2. Step 2: Convert to fraction form
    13,968.20/20,951.94 = 4,107.68/x
  3. Step 3: Cross multiply
    13,968.20x = 20,951.94 × 4,107.68
  4. Step 4: Simplify right side
    13,968.20x = 86,063,864.90
  5. Step 5: Solve for x
    x = 86,063,864.90/13,968.20
  6. Step 6: Final answer
    x = 6,161.41

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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.