Home / 8,813.86-13,229.43-8,772.82

Finding the Fourth Proportional to 8,813.86, 13,229.43 and 8,772.82

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Solution

The fourth proportional to 8,813.86, 13,229.43 and 8,772.82 is: 13,167.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.86 : 13,229.43 = 8,772.82 : x
  2. Step 2: Convert to fraction form
    8,813.86/13,229.43 = 8,772.82/x
  3. Step 3: Cross multiply
    8,813.86x = 13,229.43 × 8,772.82
  4. Step 4: Simplify right side
    8,813.86x = 116,059,408.09
  5. Step 5: Solve for x
    x = 116,059,408.09/8,813.86
  6. Step 6: Final answer
    x = 13,167.83

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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.