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Finding the Fourth Proportional to 10,945.68, 15,067.80 and 8,288.88

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Solution

The fourth proportional to 10,945.68, 15,067.80 and 8,288.88 is: 11,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.68 : 15,067.80 = 8,288.88 : x
  2. Step 2: Convert to fraction form
    10,945.68/15,067.80 = 8,288.88/x
  3. Step 3: Cross multiply
    10,945.68x = 15,067.80 × 8,288.88
  4. Step 4: Simplify right side
    10,945.68x = 124,895,186.06
  5. Step 5: Solve for x
    x = 124,895,186.06/10,945.68
  6. Step 6: Final answer
    x = 11,410.45

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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.