Home / 11,879.46-17,818.51-3,114.37

Finding the Fourth Proportional to 11,879.46, 17,818.51 and 3,114.37

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Solution

The fourth proportional to 11,879.46, 17,818.51 and 3,114.37 is: 4,671.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,879.46 : 17,818.51 = 3,114.37 : x
  2. Step 2: Convert to fraction form
    11,879.46/17,818.51 = 3,114.37/x
  3. Step 3: Cross multiply
    11,879.46x = 17,818.51 × 3,114.37
  4. Step 4: Simplify right side
    11,879.46x = 55,493,432.99
  5. Step 5: Solve for x
    x = 55,493,432.99/11,879.46
  6. Step 6: Final answer
    x = 4,671.38

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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.