Home / 8,149.80-11,246.40-4,613.75

Finding the Fourth Proportional to 8,149.80, 11,246.40 and 4,613.75

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Solution

The fourth proportional to 8,149.80, 11,246.40 and 4,613.75 is: 6,366.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.80 : 11,246.40 = 4,613.75 : x
  2. Step 2: Convert to fraction form
    8,149.80/11,246.40 = 4,613.75/x
  3. Step 3: Cross multiply
    8,149.80x = 11,246.40 × 4,613.75
  4. Step 4: Simplify right side
    8,149.80x = 51,888,021.77
  5. Step 5: Solve for x
    x = 51,888,021.77/8,149.80
  6. Step 6: Final answer
    x = 6,366.78

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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.