Home / 12,379.88-18,571.37-4,060.76

Finding the Fourth Proportional to 12,379.88, 18,571.37 and 4,060.76

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Solution

The fourth proportional to 12,379.88, 18,571.37 and 4,060.76 is: 6,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.88 : 18,571.37 = 4,060.76 : x
  2. Step 2: Convert to fraction form
    12,379.88/18,571.37 = 4,060.76/x
  3. Step 3: Cross multiply
    12,379.88x = 18,571.37 × 4,060.76
  4. Step 4: Simplify right side
    12,379.88x = 75,413,763.28
  5. Step 5: Solve for x
    x = 75,413,763.28/12,379.88
  6. Step 6: Final answer
    x = 6,091.64

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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.