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Finding the Fourth Proportional to 9,396.28, 12,963.65 and 5,360.21

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Solution

The fourth proportional to 9,396.28, 12,963.65 and 5,360.21 is: 7,395.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,396.28 : 12,963.65 = 5,360.21 : x
  2. Step 2: Convert to fraction form
    9,396.28/12,963.65 = 5,360.21/x
  3. Step 3: Cross multiply
    9,396.28x = 12,963.65 × 5,360.21
  4. Step 4: Simplify right side
    9,396.28x = 69,487,843.36
  5. Step 5: Solve for x
    x = 69,487,843.36/9,396.28
  6. Step 6: Final answer
    x = 7,395.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.