Home / 13,185.28-19,777.97-5,394.09

Finding the Fourth Proportional to 13,185.28, 19,777.97 and 5,394.09

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Solution

The fourth proportional to 13,185.28, 19,777.97 and 5,394.09 is: 8,091.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.28 : 19,777.97 = 5,394.09 : x
  2. Step 2: Convert to fraction form
    13,185.28/19,777.97 = 5,394.09/x
  3. Step 3: Cross multiply
    13,185.28x = 19,777.97 × 5,394.09
  4. Step 4: Simplify right side
    13,185.28x = 106,684,237.85
  5. Step 5: Solve for x
    x = 106,684,237.85/13,185.28
  6. Step 6: Final answer
    x = 8,091.16

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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.