Home / 8,119.52-12,179.73-2,276.58

Finding the Fourth Proportional to 8,119.52, 12,179.73 and 2,276.58

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Solution

The fourth proportional to 8,119.52, 12,179.73 and 2,276.58 is: 3,415.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.52 : 12,179.73 = 2,276.58 : x
  2. Step 2: Convert to fraction form
    8,119.52/12,179.73 = 2,276.58/x
  3. Step 3: Cross multiply
    8,119.52x = 12,179.73 × 2,276.58
  4. Step 4: Simplify right side
    8,119.52x = 27,728,183.93
  5. Step 5: Solve for x
    x = 27,728,183.93/8,119.52
  6. Step 6: Final answer
    x = 3,415.00

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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.