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Finding the Fourth Proportional to 10,636.92, 14,678.76 and 5,921.16

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Solution

The fourth proportional to 10,636.92, 14,678.76 and 5,921.16 is: 8,171.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,636.92 : 14,678.76 = 5,921.16 : x
  2. Step 2: Convert to fraction form
    10,636.92/14,678.76 = 5,921.16/x
  3. Step 3: Cross multiply
    10,636.92x = 14,678.76 × 5,921.16
  4. Step 4: Simplify right side
    10,636.92x = 86,915,286.56
  5. Step 5: Solve for x
    x = 86,915,286.56/10,636.92
  6. Step 6: Final answer
    x = 8,171.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.