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Finding the Fourth Proportional to 17,517.40, 26,276.10 and 5,205.40

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Solution

The fourth proportional to 17,517.40, 26,276.10 and 5,205.40 is: 7,808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,517.40 : 26,276.10 = 5,205.40 : x
  2. Step 2: Convert to fraction form
    17,517.40/26,276.10 = 5,205.40/x
  3. Step 3: Cross multiply
    17,517.40x = 26,276.10 × 5,205.40
  4. Step 4: Simplify right side
    17,517.40x = 136,777,610.94
  5. Step 5: Solve for x
    x = 136,777,610.94/17,517.40
  6. Step 6: Final answer
    x = 7,808.10

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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.