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Finding the Fourth Proportional to 10,992.92, 15,166.24 and 7,015.82

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Solution

The fourth proportional to 10,992.92, 15,166.24 and 7,015.82 is: 9,679.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.92 : 15,166.24 = 7,015.82 : x
  2. Step 2: Convert to fraction form
    10,992.92/15,166.24 = 7,015.82/x
  3. Step 3: Cross multiply
    10,992.92x = 15,166.24 × 7,015.82
  4. Step 4: Simplify right side
    10,992.92x = 106,403,516.55
  5. Step 5: Solve for x
    x = 106,403,516.55/10,992.92
  6. Step 6: Final answer
    x = 9,679.28

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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.