Home / 17,789.40-26,655.30-11,203.80

Finding the Fourth Proportional to 17,789.40, 26,655.30 and 11,203.80

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Solution

The fourth proportional to 17,789.40, 26,655.30 and 11,203.80 is: 16,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,789.40 : 26,655.30 = 11,203.80 : x
  2. Step 2: Convert to fraction form
    17,789.40/26,655.30 = 11,203.80/x
  3. Step 3: Cross multiply
    17,789.40x = 26,655.30 × 11,203.80
  4. Step 4: Simplify right side
    17,789.40x = 298,640,650.14
  5. Step 5: Solve for x
    x = 298,640,650.14/17,789.40
  6. Step 6: Final answer
    x = 16,787.56

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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.