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Finding the Fourth Proportional to 9,393.63, 12,963.61 and 5,201.88

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Solution

The fourth proportional to 9,393.63, 12,963.61 and 5,201.88 is: 7,178.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,393.63 : 12,963.61 = 5,201.88 : x
  2. Step 2: Convert to fraction form
    9,393.63/12,963.61 = 5,201.88/x
  3. Step 3: Cross multiply
    9,393.63x = 12,963.61 × 5,201.88
  4. Step 4: Simplify right side
    9,393.63x = 67,435,078.77
  5. Step 5: Solve for x
    x = 67,435,078.77/9,393.63
  6. Step 6: Final answer
    x = 7,178.81

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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.