Home / 18,129.56-27,183.74-10,228.68

Finding the Fourth Proportional to 18,129.56, 27,183.74 and 10,228.68

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Solution

The fourth proportional to 18,129.56, 27,183.74 and 10,228.68 is: 15,337.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.56 : 27,183.74 = 10,228.68 : x
  2. Step 2: Convert to fraction form
    18,129.56/27,183.74 = 10,228.68/x
  3. Step 3: Cross multiply
    18,129.56x = 27,183.74 × 10,228.68
  4. Step 4: Simplify right side
    18,129.56x = 278,053,726.52
  5. Step 5: Solve for x
    x = 278,053,726.52/18,129.56
  6. Step 6: Final answer
    x = 15,337.04

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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.