Home / 13,650.39-20,475.59-3,789.68

Finding the Fourth Proportional to 13,650.39, 20,475.59 and 3,789.68

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Solution

The fourth proportional to 13,650.39, 20,475.59 and 3,789.68 is: 5,684.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.39 : 20,475.59 = 3,789.68 : x
  2. Step 2: Convert to fraction form
    13,650.39/20,475.59 = 3,789.68/x
  3. Step 3: Cross multiply
    13,650.39x = 20,475.59 × 3,789.68
  4. Step 4: Simplify right side
    13,650.39x = 77,595,812.58
  5. Step 5: Solve for x
    x = 77,595,812.58/13,650.39
  6. Step 6: Final answer
    x = 5,684.51

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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.