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Finding the Fourth Proportional to 8,963.16, 12,375.32 and 5,607.60

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Solution

The fourth proportional to 8,963.16, 12,375.32 and 5,607.60 is: 7,742.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.16 : 12,375.32 = 5,607.60 : x
  2. Step 2: Convert to fraction form
    8,963.16/12,375.32 = 5,607.60/x
  3. Step 3: Cross multiply
    8,963.16x = 12,375.32 × 5,607.60
  4. Step 4: Simplify right side
    8,963.16x = 69,395,816.39
  5. Step 5: Solve for x
    x = 69,395,816.39/8,963.16
  6. Step 6: Final answer
    x = 7,742.34

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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.