Home / 8,129.25-12,195.77-4,179.02

Finding the Fourth Proportional to 8,129.25, 12,195.77 and 4,179.02

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Solution

The fourth proportional to 8,129.25, 12,195.77 and 4,179.02 is: 6,269.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.25 : 12,195.77 = 4,179.02 : x
  2. Step 2: Convert to fraction form
    8,129.25/12,195.77 = 4,179.02/x
  3. Step 3: Cross multiply
    8,129.25x = 12,195.77 × 4,179.02
  4. Step 4: Simplify right side
    8,129.25x = 50,966,284.87
  5. Step 5: Solve for x
    x = 50,966,284.87/8,129.25
  6. Step 6: Final answer
    x = 6,269.49

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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.