Home / 13,286.64-19,942.29-6,717.45

Finding the Fourth Proportional to 13,286.64, 19,942.29 and 6,717.45

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Solution

The fourth proportional to 13,286.64, 19,942.29 and 6,717.45 is: 10,082.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.64 : 19,942.29 = 6,717.45 : x
  2. Step 2: Convert to fraction form
    13,286.64/19,942.29 = 6,717.45/x
  3. Step 3: Cross multiply
    13,286.64x = 19,942.29 × 6,717.45
  4. Step 4: Simplify right side
    13,286.64x = 133,961,335.96
  5. Step 5: Solve for x
    x = 133,961,335.96/13,286.64
  6. Step 6: Final answer
    x = 10,082.41

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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.