Home / 14,091.94-21,170.83-12,123.70

Finding the Fourth Proportional to 14,091.94, 21,170.83 and 12,123.70

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Solution

The fourth proportional to 14,091.94, 21,170.83 and 12,123.70 is: 18,213.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.94 : 21,170.83 = 12,123.70 : x
  2. Step 2: Convert to fraction form
    14,091.94/21,170.83 = 12,123.70/x
  3. Step 3: Cross multiply
    14,091.94x = 21,170.83 × 12,123.70
  4. Step 4: Simplify right side
    14,091.94x = 256,668,791.67
  5. Step 5: Solve for x
    x = 256,668,791.67/14,091.94
  6. Step 6: Final answer
    x = 18,213.87

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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.