Home / 8,629.02-12,940.25-3,081.33

Finding the Fourth Proportional to 8,629.02, 12,940.25 and 3,081.33

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Solution

The fourth proportional to 8,629.02, 12,940.25 and 3,081.33 is: 4,620.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.02 : 12,940.25 = 3,081.33 : x
  2. Step 2: Convert to fraction form
    8,629.02/12,940.25 = 3,081.33/x
  3. Step 3: Cross multiply
    8,629.02x = 12,940.25 × 3,081.33
  4. Step 4: Simplify right side
    8,629.02x = 39,873,165.13
  5. Step 5: Solve for x
    x = 39,873,165.13/8,629.02
  6. Step 6: Final answer
    x = 4,620.82

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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.