Home / 8,115.75-11,195.82-4,756.47

Finding the Fourth Proportional to 8,115.75, 11,195.82 and 4,756.47

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Solution

The fourth proportional to 8,115.75, 11,195.82 and 4,756.47 is: 6,561.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.75 : 11,195.82 = 4,756.47 : x
  2. Step 2: Convert to fraction form
    8,115.75/11,195.82 = 4,756.47/x
  3. Step 3: Cross multiply
    8,115.75x = 11,195.82 × 4,756.47
  4. Step 4: Simplify right side
    8,115.75x = 53,252,581.96
  5. Step 5: Solve for x
    x = 53,252,581.96/8,115.75
  6. Step 6: Final answer
    x = 6,561.63

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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.