Home / 13,942.95-20,898.22-5,172.27

Finding the Fourth Proportional to 13,942.95, 20,898.22 and 5,172.27

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Solution

The fourth proportional to 13,942.95, 20,898.22 and 5,172.27 is: 7,752.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.95 : 20,898.22 = 5,172.27 : x
  2. Step 2: Convert to fraction form
    13,942.95/20,898.22 = 5,172.27/x
  3. Step 3: Cross multiply
    13,942.95x = 20,898.22 × 5,172.27
  4. Step 4: Simplify right side
    13,942.95x = 108,091,236.36
  5. Step 5: Solve for x
    x = 108,091,236.36/13,942.95
  6. Step 6: Final answer
    x = 7,752.39

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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.