Home / 11,787.88-17,685.28-4,764.26

Finding the Fourth Proportional to 11,787.88, 17,685.28 and 4,764.26

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Solution

The fourth proportional to 11,787.88, 17,685.28 and 4,764.26 is: 7,147.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.88 : 17,685.28 = 4,764.26 : x
  2. Step 2: Convert to fraction form
    11,787.88/17,685.28 = 4,764.26/x
  3. Step 3: Cross multiply
    11,787.88x = 17,685.28 × 4,764.26
  4. Step 4: Simplify right side
    11,787.88x = 84,257,272.09
  5. Step 5: Solve for x
    x = 84,257,272.09/11,787.88
  6. Step 6: Final answer
    x = 7,147.79

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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.