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Finding the Fourth Proportional to 12,573.20, 18,838.20 and 11,795.60

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Solution

The fourth proportional to 12,573.20, 18,838.20 and 11,795.60 is: 17,673.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,573.20 : 18,838.20 = 11,795.60 : x
  2. Step 2: Convert to fraction form
    12,573.20/18,838.20 = 11,795.60/x
  3. Step 3: Cross multiply
    12,573.20x = 18,838.20 × 11,795.60
  4. Step 4: Simplify right side
    12,573.20x = 222,207,871.92
  5. Step 5: Solve for x
    x = 222,207,871.92/12,573.20
  6. Step 6: Final answer
    x = 17,673.14

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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.