Home / 18,608.13-27,910.58-6,128.06

Finding the Fourth Proportional to 18,608.13, 27,910.58 and 6,128.06

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Solution

The fourth proportional to 18,608.13, 27,910.58 and 6,128.06 is: 9,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.13 : 27,910.58 = 6,128.06 : x
  2. Step 2: Convert to fraction form
    18,608.13/27,910.58 = 6,128.06/x
  3. Step 3: Cross multiply
    18,608.13x = 27,910.58 × 6,128.06
  4. Step 4: Simplify right side
    18,608.13x = 171,037,538.68
  5. Step 5: Solve for x
    x = 171,037,538.68/18,608.13
  6. Step 6: Final answer
    x = 9,191.55

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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.