Home / 18,129.92-27,196.25-11,790.35

Finding the Fourth Proportional to 18,129.92, 27,196.25 and 11,790.35

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Solution

The fourth proportional to 18,129.92, 27,196.25 and 11,790.35 is: 17,686.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.92 : 27,196.25 = 11,790.35 : x
  2. Step 2: Convert to fraction form
    18,129.92/27,196.25 = 11,790.35/x
  3. Step 3: Cross multiply
    18,129.92x = 27,196.25 × 11,790.35
  4. Step 4: Simplify right side
    18,129.92x = 320,653,432.54
  5. Step 5: Solve for x
    x = 320,653,432.54/18,129.92
  6. Step 6: Final answer
    x = 17,686.42

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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.