Home / 11,489.13-17,238.35-7,789.25

Finding the Fourth Proportional to 11,489.13, 17,238.35 and 7,789.25

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Solution

The fourth proportional to 11,489.13, 17,238.35 and 7,789.25 is: 11,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,489.13 : 17,238.35 = 7,789.25 : x
  2. Step 2: Convert to fraction form
    11,489.13/17,238.35 = 7,789.25/x
  3. Step 3: Cross multiply
    11,489.13x = 17,238.35 × 7,789.25
  4. Step 4: Simplify right side
    11,489.13x = 134,273,692.60
  5. Step 5: Solve for x
    x = 134,273,692.60/11,489.13
  6. Step 6: Final answer
    x = 11,687.02

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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.