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Finding the Fourth Proportional to 9,897.63, 14,846.90 and 5,511.78

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Solution

The fourth proportional to 9,897.63, 14,846.90 and 5,511.78 is: 8,267.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,897.63 : 14,846.90 = 5,511.78 : x
  2. Step 2: Convert to fraction form
    9,897.63/14,846.90 = 5,511.78/x
  3. Step 3: Cross multiply
    9,897.63x = 14,846.90 × 5,511.78
  4. Step 4: Simplify right side
    9,897.63x = 81,832,818.92
  5. Step 5: Solve for x
    x = 81,832,818.92/9,897.63
  6. Step 6: Final answer
    x = 8,267.92

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