Home / 8,052.20-12,107.10-7,879.40

Finding the Fourth Proportional to 8,052.20, 12,107.10 and 7,879.40

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Solution

The fourth proportional to 8,052.20, 12,107.10 and 7,879.40 is: 11,847.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,052.20 : 12,107.10 = 7,879.40 : x
  2. Step 2: Convert to fraction form
    8,052.20/12,107.10 = 7,879.40/x
  3. Step 3: Cross multiply
    8,052.20x = 12,107.10 × 7,879.40
  4. Step 4: Simplify right side
    8,052.20x = 95,396,683.74
  5. Step 5: Solve for x
    x = 95,396,683.74/8,052.20
  6. Step 6: Final answer
    x = 11,847.28

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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.