Home / 8,133.72-12,191.28-3,694.77

Finding the Fourth Proportional to 8,133.72, 12,191.28 and 3,694.77

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Solution

The fourth proportional to 8,133.72, 12,191.28 and 3,694.77 is: 5,537.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.72 : 12,191.28 = 3,694.77 : x
  2. Step 2: Convert to fraction form
    8,133.72/12,191.28 = 3,694.77/x
  3. Step 3: Cross multiply
    8,133.72x = 12,191.28 × 3,694.77
  4. Step 4: Simplify right side
    8,133.72x = 45,043,914.65
  5. Step 5: Solve for x
    x = 45,043,914.65/8,133.72
  6. Step 6: Final answer
    x = 5,537.93

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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.