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Finding the Fourth Proportional to 9,633.20, 14,449.80 and 9,057.20

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Solution

The fourth proportional to 9,633.20, 14,449.80 and 9,057.20 is: 13,585.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,633.20 : 14,449.80 = 9,057.20 : x
  2. Step 2: Convert to fraction form
    9,633.20/14,449.80 = 9,057.20/x
  3. Step 3: Cross multiply
    9,633.20x = 14,449.80 × 9,057.20
  4. Step 4: Simplify right side
    9,633.20x = 130,874,728.56
  5. Step 5: Solve for x
    x = 130,874,728.56/9,633.20
  6. Step 6: Final answer
    x = 13,585.80

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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.