Home / 8,629.39-12,944.15-2,786.00

Finding the Fourth Proportional to 8,629.39, 12,944.15 and 2,786.00

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Solution

The fourth proportional to 8,629.39, 12,944.15 and 2,786.00 is: 4,179.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.39 : 12,944.15 = 2,786.00 : x
  2. Step 2: Convert to fraction form
    8,629.39/12,944.15 = 2,786.00/x
  3. Step 3: Cross multiply
    8,629.39x = 12,944.15 × 2,786.00
  4. Step 4: Simplify right side
    8,629.39x = 36,062,349.37
  5. Step 5: Solve for x
    x = 36,062,349.37/8,629.39
  6. Step 6: Final answer
    x = 4,179.02

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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.