Home / 11,277.82-16,913.30-3,878.02

Finding the Fourth Proportional to 11,277.82, 16,913.30 and 3,878.02

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Solution

The fourth proportional to 11,277.82, 16,913.30 and 3,878.02 is: 5,815.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,277.82 : 16,913.30 = 3,878.02 : x
  2. Step 2: Convert to fraction form
    11,277.82/16,913.30 = 3,878.02/x
  3. Step 3: Cross multiply
    11,277.82x = 16,913.30 × 3,878.02
  4. Step 4: Simplify right side
    11,277.82x = 65,590,115.67
  5. Step 5: Solve for x
    x = 65,590,115.67/11,277.82
  6. Step 6: Final answer
    x = 5,815.85

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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.