Home / 8,858.43-12,217.36-6,465.71

Finding the Fourth Proportional to 8,858.43, 12,217.36 and 6,465.71

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Solution

The fourth proportional to 8,858.43, 12,217.36 and 6,465.71 is: 8,917.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.43 : 12,217.36 = 6,465.71 : x
  2. Step 2: Convert to fraction form
    8,858.43/12,217.36 = 6,465.71/x
  3. Step 3: Cross multiply
    8,858.43x = 12,217.36 × 6,465.71
  4. Step 4: Simplify right side
    8,858.43x = 78,993,906.73
  5. Step 5: Solve for x
    x = 78,993,906.73/8,858.43
  6. Step 6: Final answer
    x = 8,917.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.