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Finding the Fourth Proportional to 8,912.14, 13,368.04 and 3,068.62

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Solution

The fourth proportional to 8,912.14, 13,368.04 and 3,068.62 is: 4,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.14 : 13,368.04 = 3,068.62 : x
  2. Step 2: Convert to fraction form
    8,912.14/13,368.04 = 3,068.62/x
  3. Step 3: Cross multiply
    8,912.14x = 13,368.04 × 3,068.62
  4. Step 4: Simplify right side
    8,912.14x = 41,021,434.90
  5. Step 5: Solve for x
    x = 41,021,434.90/8,912.14
  6. Step 6: Final answer
    x = 4,602.87

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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.