Home / 6,129.11-8,450.70-5,183.21

Finding the Fourth Proportional to 6,129.11, 8,450.70 and 5,183.21

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Solution

The fourth proportional to 6,129.11, 8,450.70 and 5,183.21 is: 7,146.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.11 : 8,450.70 = 5,183.21 : x
  2. Step 2: Convert to fraction form
    6,129.11/8,450.70 = 5,183.21/x
  3. Step 3: Cross multiply
    6,129.11x = 8,450.70 × 5,183.21
  4. Step 4: Simplify right side
    6,129.11x = 43,801,752.75
  5. Step 5: Solve for x
    x = 43,801,752.75/6,129.11
  6. Step 6: Final answer
    x = 7,146.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.