Home / 8,110.35-11,189.67-6,403.44

Finding the Fourth Proportional to 8,110.35, 11,189.67 and 6,403.44

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Solution

The fourth proportional to 8,110.35, 11,189.67 and 6,403.44 is: 8,834.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.35 : 11,189.67 = 6,403.44 : x
  2. Step 2: Convert to fraction form
    8,110.35/11,189.67 = 6,403.44/x
  3. Step 3: Cross multiply
    8,110.35x = 11,189.67 × 6,403.44
  4. Step 4: Simplify right side
    8,110.35x = 71,652,380.46
  5. Step 5: Solve for x
    x = 71,652,380.46/8,110.35
  6. Step 6: Final answer
    x = 8,834.68

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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.