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Finding the Fourth Proportional to 11,264, 16,903.68 and 3,968

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Solution

The fourth proportional to 11,264, 16,903.68 and 3,968 is: 5,954.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,264 : 16,903.68 = 3,968 : x
  2. Step 2: Convert to fraction form
    11,264/16,903.68 = 3,968/x
  3. Step 3: Cross multiply
    11,264x = 16,903.68 × 3,968
  4. Step 4: Simplify right side
    11,264x = 67,073,802.24
  5. Step 5: Solve for x
    x = 67,073,802.24/11,264
  6. Step 6: Final answer
    x = 5,954.71

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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.