Home / 8,129.05-12,194.34-2,285.65

Finding the Fourth Proportional to 8,129.05, 12,194.34 and 2,285.65

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Solution

The fourth proportional to 8,129.05, 12,194.34 and 2,285.65 is: 3,428.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.05 : 12,194.34 = 2,285.65 : x
  2. Step 2: Convert to fraction form
    8,129.05/12,194.34 = 2,285.65/x
  3. Step 3: Cross multiply
    8,129.05x = 12,194.34 × 2,285.65
  4. Step 4: Simplify right side
    8,129.05x = 27,871,993.22
  5. Step 5: Solve for x
    x = 27,871,993.22/8,129.05
  6. Step 6: Final answer
    x = 3,428.69

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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.