Home / 11,179.12-16,768.68-3,878

Finding the Fourth Proportional to 11,179.12, 16,768.68 and 3,878

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Solution

The fourth proportional to 11,179.12, 16,768.68 and 3,878 is: 5,817.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,179.12 : 16,768.68 = 3,878 : x
  2. Step 2: Convert to fraction form
    11,179.12/16,768.68 = 3,878/x
  3. Step 3: Cross multiply
    11,179.12x = 16,768.68 × 3,878
  4. Step 4: Simplify right side
    11,179.12x = 65,028,941.04
  5. Step 5: Solve for x
    x = 65,028,941.04/11,179.12
  6. Step 6: Final answer
    x = 5,817.00

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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.