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Finding the Fourth Proportional to 15,159.48, 20,919.56 and 8,444.75

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Solution

The fourth proportional to 15,159.48, 20,919.56 and 8,444.75 is: 11,653.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,159.48 : 20,919.56 = 8,444.75 : x
  2. Step 2: Convert to fraction form
    15,159.48/20,919.56 = 8,444.75/x
  3. Step 3: Cross multiply
    15,159.48x = 20,919.56 × 8,444.75
  4. Step 4: Simplify right side
    15,159.48x = 176,660,307.49
  5. Step 5: Solve for x
    x = 176,660,307.49/15,159.48
  6. Step 6: Final answer
    x = 11,653.45

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