Home / 13,791.33-19,033.44-8,127.84

Finding the Fourth Proportional to 13,791.33, 19,033.44 and 8,127.84

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Solution

The fourth proportional to 13,791.33, 19,033.44 and 8,127.84 is: 11,217.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.33 : 19,033.44 = 8,127.84 : x
  2. Step 2: Convert to fraction form
    13,791.33/19,033.44 = 8,127.84/x
  3. Step 3: Cross multiply
    13,791.33x = 19,033.44 × 8,127.84
  4. Step 4: Simplify right side
    13,791.33x = 154,700,754.97
  5. Step 5: Solve for x
    x = 154,700,754.97/13,791.33
  6. Step 6: Final answer
    x = 11,217.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.