Home / 8,145.39-12,221.72-4,682.64

Finding the Fourth Proportional to 8,145.39, 12,221.72 and 4,682.64

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Solution

The fourth proportional to 8,145.39, 12,221.72 and 4,682.64 is: 7,026.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.39 : 12,221.72 = 4,682.64 : x
  2. Step 2: Convert to fraction form
    8,145.39/12,221.72 = 4,682.64/x
  3. Step 3: Cross multiply
    8,145.39x = 12,221.72 × 4,682.64
  4. Step 4: Simplify right side
    8,145.39x = 57,229,865.54
  5. Step 5: Solve for x
    x = 57,229,865.54/8,145.39
  6. Step 6: Final answer
    x = 7,026.05

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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.