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Finding the Fourth Proportional to 8,479.37, 12,716.47 and 5,863.69

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Solution

The fourth proportional to 8,479.37, 12,716.47 and 5,863.69 is: 8,793.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.37 : 12,716.47 = 5,863.69 : x
  2. Step 2: Convert to fraction form
    8,479.37/12,716.47 = 5,863.69/x
  3. Step 3: Cross multiply
    8,479.37x = 12,716.47 × 5,863.69
  4. Step 4: Simplify right side
    8,479.37x = 74,565,391.52
  5. Step 5: Solve for x
    x = 74,565,391.52/8,479.37
  6. Step 6: Final answer
    x = 8,793.74

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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.