Home / 8,126.27-12,189.24-2,579.50

Finding the Fourth Proportional to 8,126.27, 12,189.24 and 2,579.50

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Solution

The fourth proportional to 8,126.27, 12,189.24 and 2,579.50 is: 3,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.27 : 12,189.24 = 2,579.50 : x
  2. Step 2: Convert to fraction form
    8,126.27/12,189.24 = 2,579.50/x
  3. Step 3: Cross multiply
    8,126.27x = 12,189.24 × 2,579.50
  4. Step 4: Simplify right side
    8,126.27x = 31,442,144.58
  5. Step 5: Solve for x
    x = 31,442,144.58/8,126.27
  6. Step 6: Final answer
    x = 3,869.20

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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.