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Finding the Fourth Proportional to 17,632.80, 26,449.20 and 9,309.60

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Solution

The fourth proportional to 17,632.80, 26,449.20 and 9,309.60 is: 13,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,632.80 : 26,449.20 = 9,309.60 : x
  2. Step 2: Convert to fraction form
    17,632.80/26,449.20 = 9,309.60/x
  3. Step 3: Cross multiply
    17,632.80x = 26,449.20 × 9,309.60
  4. Step 4: Simplify right side
    17,632.80x = 246,231,472.32
  5. Step 5: Solve for x
    x = 246,231,472.32/17,632.80
  6. Step 6: Final answer
    x = 13,964.40

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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.