Home / 7,961.81-11,942.78-4,068.95

Finding the Fourth Proportional to 7,961.81, 11,942.78 and 4,068.95

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Solution

The fourth proportional to 7,961.81, 11,942.78 and 4,068.95 is: 6,103.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.81 : 11,942.78 = 4,068.95 : x
  2. Step 2: Convert to fraction form
    7,961.81/11,942.78 = 4,068.95/x
  3. Step 3: Cross multiply
    7,961.81x = 11,942.78 × 4,068.95
  4. Step 4: Simplify right side
    7,961.81x = 48,594,494.62
  5. Step 5: Solve for x
    x = 48,594,494.62/7,961.81
  6. Step 6: Final answer
    x = 6,103.45

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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.