Home / 17,128.99-25,657.07-8,231.24

Finding the Fourth Proportional to 17,128.99, 25,657.07 and 8,231.24

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Solution

The fourth proportional to 17,128.99, 25,657.07 and 8,231.24 is: 12,329.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,128.99 : 25,657.07 = 8,231.24 : x
  2. Step 2: Convert to fraction form
    17,128.99/25,657.07 = 8,231.24/x
  3. Step 3: Cross multiply
    17,128.99x = 25,657.07 × 8,231.24
  4. Step 4: Simplify right side
    17,128.99x = 211,189,500.87
  5. Step 5: Solve for x
    x = 211,189,500.87/17,128.99
  6. Step 6: Final answer
    x = 12,329.36

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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.