Home / 8,076.04-12,115.68-2,881.78

Finding the Fourth Proportional to 8,076.04, 12,115.68 and 2,881.78

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Solution

The fourth proportional to 8,076.04, 12,115.68 and 2,881.78 is: 4,323.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,076.04 : 12,115.68 = 2,881.78 : x
  2. Step 2: Convert to fraction form
    8,076.04/12,115.68 = 2,881.78/x
  3. Step 3: Cross multiply
    8,076.04x = 12,115.68 × 2,881.78
  4. Step 4: Simplify right side
    8,076.04x = 34,914,724.31
  5. Step 5: Solve for x
    x = 34,914,724.31/8,076.04
  6. Step 6: Final answer
    x = 4,323.25

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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.