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Finding the Fourth Proportional to 11,166.93, 15,420.74 and 7,194.93

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Solution

The fourth proportional to 11,166.93, 15,420.74 and 7,194.93 is: 9,935.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.93 : 15,420.74 = 7,194.93 : x
  2. Step 2: Convert to fraction form
    11,166.93/15,420.74 = 7,194.93/x
  3. Step 3: Cross multiply
    11,166.93x = 15,420.74 × 7,194.93
  4. Step 4: Simplify right side
    11,166.93x = 110,951,108.87
  5. Step 5: Solve for x
    x = 110,951,108.87/11,166.93
  6. Step 6: Final answer
    x = 9,935.69

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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.