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Finding the Fourth Proportional to 11,978.16, 17,966.40 and 5,052

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Solution

The fourth proportional to 11,978.16, 17,966.40 and 5,052 is: 7,577.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,978.16 : 17,966.40 = 5,052 : x
  2. Step 2: Convert to fraction form
    11,978.16/17,966.40 = 5,052/x
  3. Step 3: Cross multiply
    11,978.16x = 17,966.40 × 5,052
  4. Step 4: Simplify right side
    11,978.16x = 90,766,252.80
  5. Step 5: Solve for x
    x = 90,766,252.80/11,978.16
  6. Step 6: Final answer
    x = 7,577.65

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Why These Related Problems?

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