Home / 8,782.29-13,161.83-4,613.78

Finding the Fourth Proportional to 8,782.29, 13,161.83 and 4,613.78

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Solution

The fourth proportional to 8,782.29, 13,161.83 and 4,613.78 is: 6,914.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.29 : 13,161.83 = 4,613.78 : x
  2. Step 2: Convert to fraction form
    8,782.29/13,161.83 = 4,613.78/x
  3. Step 3: Cross multiply
    8,782.29x = 13,161.83 × 4,613.78
  4. Step 4: Simplify right side
    8,782.29x = 60,725,797.85
  5. Step 5: Solve for x
    x = 60,725,797.85/8,782.29
  6. Step 6: Final answer
    x = 6,914.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.