Home / 12,127.15-18,183.83-4,723.08

Finding the Fourth Proportional to 12,127.15, 18,183.83 and 4,723.08

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Solution

The fourth proportional to 12,127.15, 18,183.83 and 4,723.08 is: 7,081.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127.15 : 18,183.83 = 4,723.08 : x
  2. Step 2: Convert to fraction form
    12,127.15/18,183.83 = 4,723.08/x
  3. Step 3: Cross multiply
    12,127.15x = 18,183.83 × 4,723.08
  4. Step 4: Simplify right side
    12,127.15x = 85,883,591.99
  5. Step 5: Solve for x
    x = 85,883,591.99/12,127.15
  6. Step 6: Final answer
    x = 7,081.93

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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.