Home / 16,879.32-25,309.26-5,189.40

Finding the Fourth Proportional to 16,879.32, 25,309.26 and 5,189.40

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Solution

The fourth proportional to 16,879.32, 25,309.26 and 5,189.40 is: 7,781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.32 : 25,309.26 = 5,189.40 : x
  2. Step 2: Convert to fraction form
    16,879.32/25,309.26 = 5,189.40/x
  3. Step 3: Cross multiply
    16,879.32x = 25,309.26 × 5,189.40
  4. Step 4: Simplify right side
    16,879.32x = 131,339,873.84
  5. Step 5: Solve for x
    x = 131,339,873.84/16,879.32
  6. Step 6: Final answer
    x = 7,781.11

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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.