Home / 8,055.07-12,078.14-2,787.25

Finding the Fourth Proportional to 8,055.07, 12,078.14 and 2,787.25

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Solution

The fourth proportional to 8,055.07, 12,078.14 and 2,787.25 is: 4,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,055.07 : 12,078.14 = 2,787.25 : x
  2. Step 2: Convert to fraction form
    8,055.07/12,078.14 = 2,787.25/x
  3. Step 3: Cross multiply
    8,055.07x = 12,078.14 × 2,787.25
  4. Step 4: Simplify right side
    8,055.07x = 33,664,781.78
  5. Step 5: Solve for x
    x = 33,664,781.78/8,055.07
  6. Step 6: Final answer
    x = 4,179.33

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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.