Home / 11,684.78-17,529.95-3,787.30

Finding the Fourth Proportional to 11,684.78, 17,529.95 and 3,787.30

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Solution

The fourth proportional to 11,684.78, 17,529.95 and 3,787.30 is: 5,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,684.78 : 17,529.95 = 3,787.30 : x
  2. Step 2: Convert to fraction form
    11,684.78/17,529.95 = 3,787.30/x
  3. Step 3: Cross multiply
    11,684.78x = 17,529.95 × 3,787.30
  4. Step 4: Simplify right side
    11,684.78x = 66,391,179.64
  5. Step 5: Solve for x
    x = 66,391,179.64/11,684.78
  6. Step 6: Final answer
    x = 5,681.85

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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.