Home / 8,137.90-12,199.56-4,245.04

Finding the Fourth Proportional to 8,137.90, 12,199.56 and 4,245.04

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Solution

The fourth proportional to 8,137.90, 12,199.56 and 4,245.04 is: 6,363.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.90 : 12,199.56 = 4,245.04 : x
  2. Step 2: Convert to fraction form
    8,137.90/12,199.56 = 4,245.04/x
  3. Step 3: Cross multiply
    8,137.90x = 12,199.56 × 4,245.04
  4. Step 4: Simplify right side
    8,137.90x = 51,787,620.18
  5. Step 5: Solve for x
    x = 51,787,620.18/8,137.90
  6. Step 6: Final answer
    x = 6,363.76

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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.