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Finding the Fourth Proportional to 7,912.03, 11,868.72 and 2,068.63

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Solution

The fourth proportional to 7,912.03, 11,868.72 and 2,068.63 is: 3,103.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.03 : 11,868.72 = 2,068.63 : x
  2. Step 2: Convert to fraction form
    7,912.03/11,868.72 = 2,068.63/x
  3. Step 3: Cross multiply
    7,912.03x = 11,868.72 × 2,068.63
  4. Step 4: Simplify right side
    7,912.03x = 24,551,920.57
  5. Step 5: Solve for x
    x = 24,551,920.57/7,912.03
  6. Step 6: Final answer
    x = 3,103.11

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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.