Home / 11,921.79-17,884.31-4,527.03

Finding the Fourth Proportional to 11,921.79, 17,884.31 and 4,527.03

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Solution

The fourth proportional to 11,921.79, 17,884.31 and 4,527.03 is: 6,791.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,921.79 : 17,884.31 = 4,527.03 : x
  2. Step 2: Convert to fraction form
    11,921.79/17,884.31 = 4,527.03/x
  3. Step 3: Cross multiply
    11,921.79x = 17,884.31 × 4,527.03
  4. Step 4: Simplify right side
    11,921.79x = 80,962,807.90
  5. Step 5: Solve for x
    x = 80,962,807.90/11,921.79
  6. Step 6: Final answer
    x = 6,791.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.