Home / 12,209.11-16,846.57-8,022.55

Finding the Fourth Proportional to 12,209.11, 16,846.57 and 8,022.55

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Solution

The fourth proportional to 12,209.11, 16,846.57 and 8,022.55 is: 11,069.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.11 : 16,846.57 = 8,022.55 : x
  2. Step 2: Convert to fraction form
    12,209.11/16,846.57 = 8,022.55/x
  3. Step 3: Cross multiply
    12,209.11x = 16,846.57 × 8,022.55
  4. Step 4: Simplify right side
    12,209.11x = 135,152,450.15
  5. Step 5: Solve for x
    x = 135,152,450.15/12,209.11
  6. Step 6: Final answer
    x = 11,069.80

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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.