Home / 13,788.20-20,684.60-10,826.52

Finding the Fourth Proportional to 13,788.20, 20,684.60 and 10,826.52

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Solution

The fourth proportional to 13,788.20, 20,684.60 and 10,826.52 is: 16,241.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.20 : 20,684.60 = 10,826.52 : x
  2. Step 2: Convert to fraction form
    13,788.20/20,684.60 = 10,826.52/x
  3. Step 3: Cross multiply
    13,788.20x = 20,684.60 × 10,826.52
  4. Step 4: Simplify right side
    13,788.20x = 223,942,235.59
  5. Step 5: Solve for x
    x = 223,942,235.59/13,788.20
  6. Step 6: Final answer
    x = 16,241.59

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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.