Home / 12,591.96-18,889.59-4,155.66

Finding the Fourth Proportional to 12,591.96, 18,889.59 and 4,155.66

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Solution

The fourth proportional to 12,591.96, 18,889.59 and 4,155.66 is: 6,234.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591.96 : 18,889.59 = 4,155.66 : x
  2. Step 2: Convert to fraction form
    12,591.96/18,889.59 = 4,155.66/x
  3. Step 3: Cross multiply
    12,591.96x = 18,889.59 × 4,155.66
  4. Step 4: Simplify right side
    12,591.96x = 78,498,713.58
  5. Step 5: Solve for x
    x = 78,498,713.58/12,591.96
  6. Step 6: Final answer
    x = 6,234.03

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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.