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Finding the Fourth Proportional to 10,870.65, 16,305.98 and 3,079.53

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Solution

The fourth proportional to 10,870.65, 16,305.98 and 3,079.53 is: 4,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,870.65 : 16,305.98 = 3,079.53 : x
  2. Step 2: Convert to fraction form
    10,870.65/16,305.98 = 3,079.53/x
  3. Step 3: Cross multiply
    10,870.65x = 16,305.98 × 3,079.53
  4. Step 4: Simplify right side
    10,870.65x = 50,214,739.19
  5. Step 5: Solve for x
    x = 50,214,739.19/10,870.65
  6. Step 6: Final answer
    x = 4,619.30

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