Home / 11,757.66-17,637.50-3,857.80

Finding the Fourth Proportional to 11,757.66, 17,637.50 and 3,857.80

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Solution

The fourth proportional to 11,757.66, 17,637.50 and 3,857.80 is: 5,787.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,757.66 : 17,637.50 = 3,857.80 : x
  2. Step 2: Convert to fraction form
    11,757.66/17,637.50 = 3,857.80/x
  3. Step 3: Cross multiply
    11,757.66x = 17,637.50 × 3,857.80
  4. Step 4: Simplify right side
    11,757.66x = 68,041,947.50
  5. Step 5: Solve for x
    x = 68,041,947.50/11,757.66
  6. Step 6: Final answer
    x = 5,787.03

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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.