Home / 8,131.87-11,220.33-6,245.58

Finding the Fourth Proportional to 8,131.87, 11,220.33 and 6,245.58

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Solution

The fourth proportional to 8,131.87, 11,220.33 and 6,245.58 is: 8,617.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.87 : 11,220.33 = 6,245.58 : x
  2. Step 2: Convert to fraction form
    8,131.87/11,220.33 = 6,245.58/x
  3. Step 3: Cross multiply
    8,131.87x = 11,220.33 × 6,245.58
  4. Step 4: Simplify right side
    8,131.87x = 70,077,468.64
  5. Step 5: Solve for x
    x = 70,077,468.64/8,131.87
  6. Step 6: Final answer
    x = 8,617.63

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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.