Home / 13,590.44-20,385.68-3,729.84

Finding the Fourth Proportional to 13,590.44, 20,385.68 and 3,729.84

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Solution

The fourth proportional to 13,590.44, 20,385.68 and 3,729.84 is: 5,594.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590.44 : 20,385.68 = 3,729.84 : x
  2. Step 2: Convert to fraction form
    13,590.44/20,385.68 = 3,729.84/x
  3. Step 3: Cross multiply
    13,590.44x = 20,385.68 × 3,729.84
  4. Step 4: Simplify right side
    13,590.44x = 76,035,324.69
  5. Step 5: Solve for x
    x = 76,035,324.69/13,590.44
  6. Step 6: Final answer
    x = 5,594.77

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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.