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Finding the Fourth Proportional to 12,863.05, 17,750.88 and 7,197.76

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Solution

The fourth proportional to 12,863.05, 17,750.88 and 7,197.76 is: 9,932.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.05 : 17,750.88 = 7,197.76 : x
  2. Step 2: Convert to fraction form
    12,863.05/17,750.88 = 7,197.76/x
  3. Step 3: Cross multiply
    12,863.05x = 17,750.88 × 7,197.76
  4. Step 4: Simplify right side
    12,863.05x = 127,766,574.03
  5. Step 5: Solve for x
    x = 127,766,574.03/12,863.05
  6. Step 6: Final answer
    x = 9,932.84

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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.