Home / 12,183.24-16,812.94-6,878.20

Finding the Fourth Proportional to 12,183.24, 16,812.94 and 6,878.20

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Solution

The fourth proportional to 12,183.24, 16,812.94 and 6,878.20 is: 9,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.24 : 16,812.94 = 6,878.20 : x
  2. Step 2: Convert to fraction form
    12,183.24/16,812.94 = 6,878.20/x
  3. Step 3: Cross multiply
    12,183.24x = 16,812.94 × 6,878.20
  4. Step 4: Simplify right side
    12,183.24x = 115,642,763.91
  5. Step 5: Solve for x
    x = 115,642,763.91/12,183.24
  6. Step 6: Final answer
    x = 9,491.95

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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.