Home / 8,451.33-12,667.87-3,519.64

Finding the Fourth Proportional to 8,451.33, 12,667.87 and 3,519.64

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Solution

The fourth proportional to 8,451.33, 12,667.87 and 3,519.64 is: 5,275.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.33 : 12,667.87 = 3,519.64 : x
  2. Step 2: Convert to fraction form
    8,451.33/12,667.87 = 3,519.64/x
  3. Step 3: Cross multiply
    8,451.33x = 12,667.87 × 3,519.64
  4. Step 4: Simplify right side
    8,451.33x = 44,586,341.97
  5. Step 5: Solve for x
    x = 44,586,341.97/8,451.33
  6. Step 6: Final answer
    x = 5,275.66

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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.