Home / 13,836.84-20,761.36-7,261.44

Finding the Fourth Proportional to 13,836.84, 20,761.36 and 7,261.44

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Solution

The fourth proportional to 13,836.84, 20,761.36 and 7,261.44 is: 10,895.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836.84 : 20,761.36 = 7,261.44 : x
  2. Step 2: Convert to fraction form
    13,836.84/20,761.36 = 7,261.44/x
  3. Step 3: Cross multiply
    13,836.84x = 20,761.36 × 7,261.44
  4. Step 4: Simplify right side
    13,836.84x = 150,757,351.80
  5. Step 5: Solve for x
    x = 150,757,351.80/13,836.84
  6. Step 6: Final answer
    x = 10,895.36

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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.