Home / 12,212.91-18,317.88-5,195.75

Finding the Fourth Proportional to 12,212.91, 18,317.88 and 5,195.75

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Solution

The fourth proportional to 12,212.91, 18,317.88 and 5,195.75 is: 7,792.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,212.91 : 18,317.88 = 5,195.75 : x
  2. Step 2: Convert to fraction form
    12,212.91/18,317.88 = 5,195.75/x
  3. Step 3: Cross multiply
    12,212.91x = 18,317.88 × 5,195.75
  4. Step 4: Simplify right side
    12,212.91x = 95,175,033.42
  5. Step 5: Solve for x
    x = 95,175,033.42/12,212.91
  6. Step 6: Final answer
    x = 7,792.99

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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.