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Finding the Fourth Proportional to 9,905.22, 14,838.57 and 5,509.35

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Solution

The fourth proportional to 9,905.22, 14,838.57 and 5,509.35 is: 8,253.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.22 : 14,838.57 = 5,509.35 : x
  2. Step 2: Convert to fraction form
    9,905.22/14,838.57 = 5,509.35/x
  3. Step 3: Cross multiply
    9,905.22x = 14,838.57 × 5,509.35
  4. Step 4: Simplify right side
    9,905.22x = 81,750,875.63
  5. Step 5: Solve for x
    x = 81,750,875.63/9,905.22
  6. Step 6: Final answer
    x = 8,253.31

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