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Finding the Fourth Proportional to 15,483.44, 21,368.76 and 9,196.40

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Solution

The fourth proportional to 15,483.44, 21,368.76 and 9,196.40 is: 12,691.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,483.44 : 21,368.76 = 9,196.40 : x
  2. Step 2: Convert to fraction form
    15,483.44/21,368.76 = 9,196.40/x
  3. Step 3: Cross multiply
    15,483.44x = 21,368.76 × 9,196.40
  4. Step 4: Simplify right side
    15,483.44x = 196,515,664.46
  5. Step 5: Solve for x
    x = 196,515,664.46/15,483.44
  6. Step 6: Final answer
    x = 12,691.99

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