Home / 13,940.58-19,234.26-8,270.61

Finding the Fourth Proportional to 13,940.58, 19,234.26 and 8,270.61

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Solution

The fourth proportional to 13,940.58, 19,234.26 and 8,270.61 is: 11,411.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.58 : 19,234.26 = 8,270.61 : x
  2. Step 2: Convert to fraction form
    13,940.58/19,234.26 = 8,270.61/x
  3. Step 3: Cross multiply
    13,940.58x = 19,234.26 × 8,270.61
  4. Step 4: Simplify right side
    13,940.58x = 159,079,063.10
  5. Step 5: Solve for x
    x = 159,079,063.10/13,940.58
  6. Step 6: Final answer
    x = 11,411.22

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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.