Home / 8,126.70-12,183.30-3,450.30

Finding the Fourth Proportional to 8,126.70, 12,183.30 and 3,450.30

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Solution

The fourth proportional to 8,126.70, 12,183.30 and 3,450.30 is: 5,172.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.70 : 12,183.30 = 3,450.30 : x
  2. Step 2: Convert to fraction form
    8,126.70/12,183.30 = 3,450.30/x
  3. Step 3: Cross multiply
    8,126.70x = 12,183.30 × 3,450.30
  4. Step 4: Simplify right side
    8,126.70x = 42,036,039.99
  5. Step 5: Solve for x
    x = 42,036,039.99/8,126.70
  6. Step 6: Final answer
    x = 5,172.58

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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.