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Finding the Fourth Proportional to 15,988.56, 22,064.82 and 8,916.36

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Solution

The fourth proportional to 15,988.56, 22,064.82 and 8,916.36 is: 12,304.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,988.56 : 22,064.82 = 8,916.36 : x
  2. Step 2: Convert to fraction form
    15,988.56/22,064.82 = 8,916.36/x
  3. Step 3: Cross multiply
    15,988.56x = 22,064.82 × 8,916.36
  4. Step 4: Simplify right side
    15,988.56x = 196,737,878.46
  5. Step 5: Solve for x
    x = 196,737,878.46/15,988.56
  6. Step 6: Final answer
    x = 12,304.92

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