Home / 8,118.22-12,155.57-5,647.82

Finding the Fourth Proportional to 8,118.22, 12,155.57 and 5,647.82

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Solution

The fourth proportional to 8,118.22, 12,155.57 and 5,647.82 is: 8,456.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.22 : 12,155.57 = 5,647.82 : x
  2. Step 2: Convert to fraction form
    8,118.22/12,155.57 = 5,647.82/x
  3. Step 3: Cross multiply
    8,118.22x = 12,155.57 × 5,647.82
  4. Step 4: Simplify right side
    8,118.22x = 68,652,471.36
  5. Step 5: Solve for x
    x = 68,652,471.36/8,118.22
  6. Step 6: Final answer
    x = 8,456.59

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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.