Home / 8,119.26-12,178.92-2,576.49

Finding the Fourth Proportional to 8,119.26, 12,178.92 and 2,576.49

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Solution

The fourth proportional to 8,119.26, 12,178.92 and 2,576.49 is: 3,864.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.26 : 12,178.92 = 2,576.49 : x
  2. Step 2: Convert to fraction form
    8,119.26/12,178.92 = 2,576.49/x
  3. Step 3: Cross multiply
    8,119.26x = 12,178.92 × 2,576.49
  4. Step 4: Simplify right side
    8,119.26x = 31,378,865.59
  5. Step 5: Solve for x
    x = 31,378,865.59/8,119.26
  6. Step 6: Final answer
    x = 3,864.74

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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.