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Finding the Fourth Proportional to 11,886.34, 17,829.96 and 5,312.56

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Solution

The fourth proportional to 11,886.34, 17,829.96 and 5,312.56 is: 7,969.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,886.34 : 17,829.96 = 5,312.56 : x
  2. Step 2: Convert to fraction form
    11,886.34/17,829.96 = 5,312.56/x
  3. Step 3: Cross multiply
    11,886.34x = 17,829.96 × 5,312.56
  4. Step 4: Simplify right side
    11,886.34x = 94,722,732.30
  5. Step 5: Solve for x
    x = 94,722,732.30/11,886.34
  6. Step 6: Final answer
    x = 7,969.04

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