Home / 8,151.96-11,249.71-4,615.18

Finding the Fourth Proportional to 8,151.96, 11,249.71 and 4,615.18

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Solution

The fourth proportional to 8,151.96, 11,249.71 and 4,615.18 is: 6,368.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.96 : 11,249.71 = 4,615.18 : x
  2. Step 2: Convert to fraction form
    8,151.96/11,249.71 = 4,615.18/x
  3. Step 3: Cross multiply
    8,151.96x = 11,249.71 × 4,615.18
  4. Step 4: Simplify right side
    8,151.96x = 51,919,396.94
  5. Step 5: Solve for x
    x = 51,919,396.94/8,151.96
  6. Step 6: Final answer
    x = 6,368.95

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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.