Home / 13,286.28-19,941.72-6,717.06

Finding the Fourth Proportional to 13,286.28, 19,941.72 and 6,717.06

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Solution

The fourth proportional to 13,286.28, 19,941.72 and 6,717.06 is: 10,081.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.28 : 19,941.72 = 6,717.06 : x
  2. Step 2: Convert to fraction form
    13,286.28/19,941.72 = 6,717.06/x
  3. Step 3: Cross multiply
    13,286.28x = 19,941.72 × 6,717.06
  4. Step 4: Simplify right side
    13,286.28x = 133,949,729.74
  5. Step 5: Solve for x
    x = 133,949,729.74/13,286.28
  6. Step 6: Final answer
    x = 10,081.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.