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Finding the Fourth Proportional to 13,177.96, 18,186.01 and 7,512.60

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Solution

The fourth proportional to 13,177.96, 18,186.01 and 7,512.60 is: 10,367.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.96 : 18,186.01 = 7,512.60 : x
  2. Step 2: Convert to fraction form
    13,177.96/18,186.01 = 7,512.60/x
  3. Step 3: Cross multiply
    13,177.96x = 18,186.01 × 7,512.60
  4. Step 4: Simplify right side
    13,177.96x = 136,624,218.73
  5. Step 5: Solve for x
    x = 136,624,218.73/13,177.96
  6. Step 6: Final answer
    x = 10,367.63

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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.