Home / 18,240.86-25,155.60-11,514.86

Finding the Fourth Proportional to 18,240.86, 25,155.60 and 11,514.86

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Solution

The fourth proportional to 18,240.86, 25,155.60 and 11,514.86 is: 15,879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,240.86 : 25,155.60 = 11,514.86 : x
  2. Step 2: Convert to fraction form
    18,240.86/25,155.60 = 11,514.86/x
  3. Step 3: Cross multiply
    18,240.86x = 25,155.60 × 11,514.86
  4. Step 4: Simplify right side
    18,240.86x = 289,663,212.22
  5. Step 5: Solve for x
    x = 289,663,212.22/18,240.86
  6. Step 6: Final answer
    x = 15,879.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.