Home / 11,763.28-17,644.96-3,972.16

Finding the Fourth Proportional to 11,763.28, 17,644.96 and 3,972.16

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Solution

The fourth proportional to 11,763.28, 17,644.96 and 3,972.16 is: 5,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,763.28 : 17,644.96 = 3,972.16 : x
  2. Step 2: Convert to fraction form
    11,763.28/17,644.96 = 3,972.16/x
  3. Step 3: Cross multiply
    11,763.28x = 17,644.96 × 3,972.16
  4. Step 4: Simplify right side
    11,763.28x = 70,088,604.31
  5. Step 5: Solve for x
    x = 70,088,604.31/11,763.28
  6. Step 6: Final answer
    x = 5,958.25

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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.