Home / 12,246.85-18,372.91-3,813.19

Finding the Fourth Proportional to 12,246.85, 18,372.91 and 3,813.19

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Solution

The fourth proportional to 12,246.85, 18,372.91 and 3,813.19 is: 5,720.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,246.85 : 18,372.91 = 3,813.19 : x
  2. Step 2: Convert to fraction form
    12,246.85/18,372.91 = 3,813.19/x
  3. Step 3: Cross multiply
    12,246.85x = 18,372.91 × 3,813.19
  4. Step 4: Simplify right side
    12,246.85x = 70,059,396.68
  5. Step 5: Solve for x
    x = 70,059,396.68/12,246.85
  6. Step 6: Final answer
    x = 5,720.61

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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.