Home / 13,926.55-20,891.04-5,161.54

Finding the Fourth Proportional to 13,926.55, 20,891.04 and 5,161.54

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Solution

The fourth proportional to 13,926.55, 20,891.04 and 5,161.54 is: 7,742.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,926.55 : 20,891.04 = 5,161.54 : x
  2. Step 2: Convert to fraction form
    13,926.55/20,891.04 = 5,161.54/x
  3. Step 3: Cross multiply
    13,926.55x = 20,891.04 × 5,161.54
  4. Step 4: Simplify right side
    13,926.55x = 107,829,938.60
  5. Step 5: Solve for x
    x = 107,829,938.60/13,926.55
  6. Step 6: Final answer
    x = 7,742.76

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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.