Home / 8,138.60-11,232.30-4,553.76

Finding the Fourth Proportional to 8,138.60, 11,232.30 and 4,553.76

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Solution

The fourth proportional to 8,138.60, 11,232.30 and 4,553.76 is: 6,284.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.60 : 11,232.30 = 4,553.76 : x
  2. Step 2: Convert to fraction form
    8,138.60/11,232.30 = 4,553.76/x
  3. Step 3: Cross multiply
    8,138.60x = 11,232.30 × 4,553.76
  4. Step 4: Simplify right side
    8,138.60x = 51,149,198.45
  5. Step 5: Solve for x
    x = 51,149,198.45/8,138.60
  6. Step 6: Final answer
    x = 6,284.77

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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.