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Finding the Fourth Proportional to 13,772.73, 19,006.52 and 7,485.11

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Solution

The fourth proportional to 13,772.73, 19,006.52 and 7,485.11 is: 10,329.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.73 : 19,006.52 = 7,485.11 : x
  2. Step 2: Convert to fraction form
    13,772.73/19,006.52 = 7,485.11/x
  3. Step 3: Cross multiply
    13,772.73x = 19,006.52 × 7,485.11
  4. Step 4: Simplify right side
    13,772.73x = 142,265,760.46
  5. Step 5: Solve for x
    x = 142,265,760.46/13,772.73
  6. Step 6: Final answer
    x = 10,329.53

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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.