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Finding the Fourth Proportional to 10,788.68, 16,171.50 and 7,701.32

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Solution

The fourth proportional to 10,788.68, 16,171.50 and 7,701.32 is: 11,543.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,788.68 : 16,171.50 = 7,701.32 : x
  2. Step 2: Convert to fraction form
    10,788.68/16,171.50 = 7,701.32/x
  3. Step 3: Cross multiply
    10,788.68x = 16,171.50 × 7,701.32
  4. Step 4: Simplify right side
    10,788.68x = 124,541,896.38
  5. Step 5: Solve for x
    x = 124,541,896.38/10,788.68
  6. Step 6: Final answer
    x = 11,543.76

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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.