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Finding the Fourth Proportional to 11,054.80, 16,582.20 and 10,517.20

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Solution

The fourth proportional to 11,054.80, 16,582.20 and 10,517.20 is: 15,775.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,054.80 : 16,582.20 = 10,517.20 : x
  2. Step 2: Convert to fraction form
    11,054.80/16,582.20 = 10,517.20/x
  3. Step 3: Cross multiply
    11,054.80x = 16,582.20 × 10,517.20
  4. Step 4: Simplify right side
    11,054.80x = 174,398,313.84
  5. Step 5: Solve for x
    x = 174,398,313.84/11,054.80
  6. Step 6: Final answer
    x = 15,775.80

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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.