Home / 13,628.42-20,436.80-5,193.50

Finding the Fourth Proportional to 13,628.42, 20,436.80 and 5,193.50

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Solution

The fourth proportional to 13,628.42, 20,436.80 and 5,193.50 is: 7,788.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.42 : 20,436.80 = 5,193.50 : x
  2. Step 2: Convert to fraction form
    13,628.42/20,436.80 = 5,193.50/x
  3. Step 3: Cross multiply
    13,628.42x = 20,436.80 × 5,193.50
  4. Step 4: Simplify right side
    13,628.42x = 106,138,520.80
  5. Step 5: Solve for x
    x = 106,138,520.80/13,628.42
  6. Step 6: Final answer
    x = 7,788.03

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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.