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Finding the Fourth Proportional to 9,895.86, 13,655.25 and 5,646.60

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Solution

The fourth proportional to 9,895.86, 13,655.25 and 5,646.60 is: 7,791.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,895.86 : 13,655.25 = 5,646.60 : x
  2. Step 2: Convert to fraction form
    9,895.86/13,655.25 = 5,646.60/x
  3. Step 3: Cross multiply
    9,895.86x = 13,655.25 × 5,646.60
  4. Step 4: Simplify right side
    9,895.86x = 77,105,734.65
  5. Step 5: Solve for x
    x = 77,105,734.65/9,895.86
  6. Step 6: Final answer
    x = 7,791.72

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