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Finding the Fourth Proportional to 8,736.54, 11,988.62 and 7,944.54

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Solution

The fourth proportional to 8,736.54, 11,988.62 and 7,944.54 is: 10,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.54 : 11,988.62 = 7,944.54 : x
  2. Step 2: Convert to fraction form
    8,736.54/11,988.62 = 7,944.54/x
  3. Step 3: Cross multiply
    8,736.54x = 11,988.62 × 7,944.54
  4. Step 4: Simplify right side
    8,736.54x = 95,244,031.41
  5. Step 5: Solve for x
    x = 95,244,031.41/8,736.54
  6. Step 6: Final answer
    x = 10,901.80

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.