Home / 13,860.30-20,787.39-3,997.44

Finding the Fourth Proportional to 13,860.30, 20,787.39 and 3,997.44

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Solution

The fourth proportional to 13,860.30, 20,787.39 and 3,997.44 is: 5,995.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.30 : 20,787.39 = 3,997.44 : x
  2. Step 2: Convert to fraction form
    13,860.30/20,787.39 = 3,997.44/x
  3. Step 3: Cross multiply
    13,860.30x = 20,787.39 × 3,997.44
  4. Step 4: Simplify right side
    13,860.30x = 83,096,344.28
  5. Step 5: Solve for x
    x = 83,096,344.28/13,860.30
  6. Step 6: Final answer
    x = 5,995.28

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1.5x scale

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.