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Finding the Fourth Proportional to 11,028.60, 16,542.90 and 4,451.40

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Solution

The fourth proportional to 11,028.60, 16,542.90 and 4,451.40 is: 6,677.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028.60 : 16,542.90 = 4,451.40 : x
  2. Step 2: Convert to fraction form
    11,028.60/16,542.90 = 4,451.40/x
  3. Step 3: Cross multiply
    11,028.60x = 16,542.90 × 4,451.40
  4. Step 4: Simplify right side
    11,028.60x = 73,639,065.06
  5. Step 5: Solve for x
    x = 73,639,065.06/11,028.60
  6. Step 6: Final answer
    x = 6,677.10

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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.