Home / 8,414.38-11,611.05-4,877.80

Finding the Fourth Proportional to 8,414.38, 11,611.05 and 4,877.80

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Solution

The fourth proportional to 8,414.38, 11,611.05 and 4,877.80 is: 6,730.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,414.38 : 11,611.05 = 4,877.80 : x
  2. Step 2: Convert to fraction form
    8,414.38/11,611.05 = 4,877.80/x
  3. Step 3: Cross multiply
    8,414.38x = 11,611.05 × 4,877.80
  4. Step 4: Simplify right side
    8,414.38x = 56,636,379.69
  5. Step 5: Solve for x
    x = 56,636,379.69/8,414.38
  6. Step 6: Final answer
    x = 6,730.90

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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.