Home / 8,146.28-12,221.10-4,249.64

Finding the Fourth Proportional to 8,146.28, 12,221.10 and 4,249.64

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Solution

The fourth proportional to 8,146.28, 12,221.10 and 4,249.64 is: 6,375.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.28 : 12,221.10 = 4,249.64 : x
  2. Step 2: Convert to fraction form
    8,146.28/12,221.10 = 4,249.64/x
  3. Step 3: Cross multiply
    8,146.28x = 12,221.10 × 4,249.64
  4. Step 4: Simplify right side
    8,146.28x = 51,935,275.40
  5. Step 5: Solve for x
    x = 51,935,275.40/8,146.28
  6. Step 6: Final answer
    x = 6,375.34

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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.