Home / 6,129.61-8,451.39-5,183.71

Finding the Fourth Proportional to 6,129.61, 8,451.39 and 5,183.71

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Solution

The fourth proportional to 6,129.61, 8,451.39 and 5,183.71 is: 7,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.61 : 8,451.39 = 5,183.71 : x
  2. Step 2: Convert to fraction form
    6,129.61/8,451.39 = 5,183.71/x
  3. Step 3: Cross multiply
    6,129.61x = 8,451.39 × 5,183.71
  4. Step 4: Simplify right side
    6,129.61x = 43,809,554.86
  5. Step 5: Solve for x
    x = 43,809,554.86/6,129.61
  6. Step 6: Final answer
    x = 7,147.20

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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.