Home / 8,161.23-12,241.08-3,778.71

Finding the Fourth Proportional to 8,161.23, 12,241.08 and 3,778.71

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Solution

The fourth proportional to 8,161.23, 12,241.08 and 3,778.71 is: 5,667.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161.23 : 12,241.08 = 3,778.71 : x
  2. Step 2: Convert to fraction form
    8,161.23/12,241.08 = 3,778.71/x
  3. Step 3: Cross multiply
    8,161.23x = 12,241.08 × 3,778.71
  4. Step 4: Simplify right side
    8,161.23x = 46,255,491.41
  5. Step 5: Solve for x
    x = 46,255,491.41/8,161.23
  6. Step 6: Final answer
    x = 5,667.71

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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.