Home / 13,826.64-20,739.92-3,965.68

Finding the Fourth Proportional to 13,826.64, 20,739.92 and 3,965.68

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Solution

The fourth proportional to 13,826.64, 20,739.92 and 3,965.68 is: 5,948.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.64 : 20,739.92 = 3,965.68 : x
  2. Step 2: Convert to fraction form
    13,826.64/20,739.92 = 3,965.68/x
  3. Step 3: Cross multiply
    13,826.64x = 20,739.92 × 3,965.68
  4. Step 4: Simplify right side
    13,826.64x = 82,247,885.95
  5. Step 5: Solve for x
    x = 82,247,885.95/13,826.64
  6. Step 6: Final answer
    x = 5,948.51

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1.5x scale

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.