Home / 8,131-12,189.26-2,935.72

Finding the Fourth Proportional to 8,131, 12,189.26 and 2,935.72

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Solution

The fourth proportional to 8,131, 12,189.26 and 2,935.72 is: 4,400.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131 : 12,189.26 = 2,935.72 : x
  2. Step 2: Convert to fraction form
    8,131/12,189.26 = 2,935.72/x
  3. Step 3: Cross multiply
    8,131x = 12,189.26 × 2,935.72
  4. Step 4: Simplify right side
    8,131x = 35,784,254.37
  5. Step 5: Solve for x
    x = 35,784,254.37/8,131
  6. Step 6: Final answer
    x = 4,400.97

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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.