Home / 12,901.57-19,245.23-12,469.66

Finding the Fourth Proportional to 12,901.57, 19,245.23 and 12,469.66

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Solution

The fourth proportional to 12,901.57, 19,245.23 and 12,469.66 is: 18,600.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,901.57 : 19,245.23 = 12,469.66 : x
  2. Step 2: Convert to fraction form
    12,901.57/19,245.23 = 12,469.66/x
  3. Step 3: Cross multiply
    12,901.57x = 19,245.23 × 12,469.66
  4. Step 4: Simplify right side
    12,901.57x = 239,981,474.72
  5. Step 5: Solve for x
    x = 239,981,474.72/12,901.57
  6. Step 6: Final answer
    x = 18,600.95

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.