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Finding the Fourth Proportional to 17,634.20, 26,451.30 and 7,768.40

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Solution

The fourth proportional to 17,634.20, 26,451.30 and 7,768.40 is: 11,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,634.20 : 26,451.30 = 7,768.40 : x
  2. Step 2: Convert to fraction form
    17,634.20/26,451.30 = 7,768.40/x
  3. Step 3: Cross multiply
    17,634.20x = 26,451.30 × 7,768.40
  4. Step 4: Simplify right side
    17,634.20x = 205,484,278.92
  5. Step 5: Solve for x
    x = 205,484,278.92/17,634.20
  6. Step 6: Final answer
    x = 11,652.60

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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.