Home / 14,286.49-19,717.76-8,321.69

Finding the Fourth Proportional to 14,286.49, 19,717.76 and 8,321.69

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Solution

The fourth proportional to 14,286.49, 19,717.76 and 8,321.69 is: 11,485.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,286.49 : 19,717.76 = 8,321.69 : x
  2. Step 2: Convert to fraction form
    14,286.49/19,717.76 = 8,321.69/x
  3. Step 3: Cross multiply
    14,286.49x = 19,717.76 × 8,321.69
  4. Step 4: Simplify right side
    14,286.49x = 164,085,093.90
  5. Step 5: Solve for x
    x = 164,085,093.90/14,286.49
  6. Step 6: Final answer
    x = 11,485.33

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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.