Home / 8,151.76-11,249.49-4,615.66

Finding the Fourth Proportional to 8,151.76, 11,249.49 and 4,615.66

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Solution

The fourth proportional to 8,151.76, 11,249.49 and 4,615.66 is: 6,369.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.76 : 11,249.49 = 4,615.66 : x
  2. Step 2: Convert to fraction form
    8,151.76/11,249.49 = 4,615.66/x
  3. Step 3: Cross multiply
    8,151.76x = 11,249.49 × 4,615.66
  4. Step 4: Simplify right side
    8,151.76x = 51,923,821.01
  5. Step 5: Solve for x
    x = 51,923,821.01/8,151.76
  6. Step 6: Final answer
    x = 6,369.65

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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.