Home / 18,156.15-25,065.99-11,879.46

Finding the Fourth Proportional to 18,156.15, 25,065.99 and 11,879.46

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Solution

The fourth proportional to 18,156.15, 25,065.99 and 11,879.46 is: 16,400.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,156.15 : 25,065.99 = 11,879.46 : x
  2. Step 2: Convert to fraction form
    18,156.15/25,065.99 = 11,879.46/x
  3. Step 3: Cross multiply
    18,156.15x = 25,065.99 × 11,879.46
  4. Step 4: Simplify right side
    18,156.15x = 297,770,425.57
  5. Step 5: Solve for x
    x = 297,770,425.57/18,156.15
  6. Step 6: Final answer
    x = 16,400.53

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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.