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Finding the Fourth Proportional to 12,610.28, 18,902.28 and 7,055.48

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Solution

The fourth proportional to 12,610.28, 18,902.28 and 7,055.48 is: 10,575.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.28 : 18,902.28 = 7,055.48 : x
  2. Step 2: Convert to fraction form
    12,610.28/18,902.28 = 7,055.48/x
  3. Step 3: Cross multiply
    12,610.28x = 18,902.28 × 7,055.48
  4. Step 4: Simplify right side
    12,610.28x = 133,364,658.49
  5. Step 5: Solve for x
    x = 133,364,658.49/12,610.28
  6. Step 6: Final answer
    x = 10,575.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.