Home / 13,958.88-20,938.32-5,196

Finding the Fourth Proportional to 13,958.88, 20,938.32 and 5,196

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Solution

The fourth proportional to 13,958.88, 20,938.32 and 5,196 is: 7,794

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.88 : 20,938.32 = 5,196 : x
  2. Step 2: Convert to fraction form
    13,958.88/20,938.32 = 5,196/x
  3. Step 3: Cross multiply
    13,958.88x = 20,938.32 × 5,196
  4. Step 4: Simplify right side
    13,958.88x = 108,795,510.72
  5. Step 5: Solve for x
    x = 108,795,510.72/13,958.88
  6. Step 6: Final answer
    x = 7,794

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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.