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Finding the Fourth Proportional to 12,032.60, 18,046.20 and 7,901.60

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Solution

The fourth proportional to 12,032.60, 18,046.20 and 7,901.60 is: 11,850.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,032.60 : 18,046.20 = 7,901.60 : x
  2. Step 2: Convert to fraction form
    12,032.60/18,046.20 = 7,901.60/x
  3. Step 3: Cross multiply
    12,032.60x = 18,046.20 × 7,901.60
  4. Step 4: Simplify right side
    12,032.60x = 142,593,853.92
  5. Step 5: Solve for x
    x = 142,593,853.92/12,032.60
  6. Step 6: Final answer
    x = 11,850.63

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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.