Home / 13,940.13-19,234.49-8,274.07

Finding the Fourth Proportional to 13,940.13, 19,234.49 and 8,274.07

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Solution

The fourth proportional to 13,940.13, 19,234.49 and 8,274.07 is: 11,416.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.13 : 19,234.49 = 8,274.07 : x
  2. Step 2: Convert to fraction form
    13,940.13/19,234.49 = 8,274.07/x
  3. Step 3: Cross multiply
    13,940.13x = 19,234.49 × 8,274.07
  4. Step 4: Simplify right side
    13,940.13x = 159,147,516.67
  5. Step 5: Solve for x
    x = 159,147,516.67/13,940.13
  6. Step 6: Final answer
    x = 11,416.50

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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.