Home / 13,949.82-19,247.70-8,286.43

Finding the Fourth Proportional to 13,949.82, 19,247.70 and 8,286.43

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Solution

The fourth proportional to 13,949.82, 19,247.70 and 8,286.43 is: 11,433.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.82 : 19,247.70 = 8,286.43 : x
  2. Step 2: Convert to fraction form
    13,949.82/19,247.70 = 8,286.43/x
  3. Step 3: Cross multiply
    13,949.82x = 19,247.70 × 8,286.43
  4. Step 4: Simplify right side
    13,949.82x = 159,494,718.71
  5. Step 5: Solve for x
    x = 159,494,718.71/13,949.82
  6. Step 6: Final answer
    x = 11,433.46

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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.