Home / 12,098.08-16,700.83-8,121.38

Finding the Fourth Proportional to 12,098.08, 16,700.83 and 8,121.38

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Solution

The fourth proportional to 12,098.08, 16,700.83 and 8,121.38 is: 11,211.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,098.08 : 16,700.83 = 8,121.38 : x
  2. Step 2: Convert to fraction form
    12,098.08/16,700.83 = 8,121.38/x
  3. Step 3: Cross multiply
    12,098.08x = 16,700.83 × 8,121.38
  4. Step 4: Simplify right side
    12,098.08x = 135,633,786.75
  5. Step 5: Solve for x
    x = 135,633,786.75/12,098.08
  6. Step 6: Final answer
    x = 11,211.18

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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.