Home / 8,240.39-12,358.19-4,729.80

Finding the Fourth Proportional to 8,240.39, 12,358.19 and 4,729.80

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Solution

The fourth proportional to 8,240.39, 12,358.19 and 4,729.80 is: 7,093.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,240.39 : 12,358.19 = 4,729.80 : x
  2. Step 2: Convert to fraction form
    8,240.39/12,358.19 = 4,729.80/x
  3. Step 3: Cross multiply
    8,240.39x = 12,358.19 × 4,729.80
  4. Step 4: Simplify right side
    8,240.39x = 58,451,743.41
  5. Step 5: Solve for x
    x = 58,451,743.41/8,240.39
  6. Step 6: Final answer
    x = 7,093.33

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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.