Home / 8,126.20-12,152.22-5,912.20

Finding the Fourth Proportional to 8,126.20, 12,152.22 and 5,912.20

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Solution

The fourth proportional to 8,126.20, 12,152.22 and 5,912.20 is: 8,841.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.20 : 12,152.22 = 5,912.20 : x
  2. Step 2: Convert to fraction form
    8,126.20/12,152.22 = 5,912.20/x
  3. Step 3: Cross multiply
    8,126.20x = 12,152.22 × 5,912.20
  4. Step 4: Simplify right side
    8,126.20x = 71,846,355.08
  5. Step 5: Solve for x
    x = 71,846,355.08/8,126.20
  6. Step 6: Final answer
    x = 8,841.32

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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.