Home / 11,787.39-17,684.06-4,392.09

Finding the Fourth Proportional to 11,787.39, 17,684.06 and 4,392.09

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Solution

The fourth proportional to 11,787.39, 17,684.06 and 4,392.09 is: 6,589.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.39 : 17,684.06 = 4,392.09 : x
  2. Step 2: Convert to fraction form
    11,787.39/17,684.06 = 4,392.09/x
  3. Step 3: Cross multiply
    11,787.39x = 17,684.06 × 4,392.09
  4. Step 4: Simplify right side
    11,787.39x = 77,669,961.12
  5. Step 5: Solve for x
    x = 77,669,961.12/11,787.39
  6. Step 6: Final answer
    x = 6,589.24

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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.