Home / 18,542.58-27,806.37-11,512.18

Finding the Fourth Proportional to 18,542.58, 27,806.37 and 11,512.18

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Solution

The fourth proportional to 18,542.58, 27,806.37 and 11,512.18 is: 17,263.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,542.58 : 27,806.37 = 11,512.18 : x
  2. Step 2: Convert to fraction form
    18,542.58/27,806.37 = 11,512.18/x
  3. Step 3: Cross multiply
    18,542.58x = 27,806.37 × 11,512.18
  4. Step 4: Simplify right side
    18,542.58x = 320,111,936.59
  5. Step 5: Solve for x
    x = 320,111,936.59/18,542.58
  6. Step 6: Final answer
    x = 17,263.61

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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.