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Finding the Fourth Proportional to 18,347.91, 25,320.13 and 9,964.41

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Solution

The fourth proportional to 18,347.91, 25,320.13 and 9,964.41 is: 13,750.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.91 : 25,320.13 = 9,964.41 : x
  2. Step 2: Convert to fraction form
    18,347.91/25,320.13 = 9,964.41/x
  3. Step 3: Cross multiply
    18,347.91x = 25,320.13 × 9,964.41
  4. Step 4: Simplify right side
    18,347.91x = 252,300,036.71
  5. Step 5: Solve for x
    x = 252,300,036.71/18,347.91
  6. Step 6: Final answer
    x = 13,750.89

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