Home / 13,623.72-20,435.18-3,763.59

Finding the Fourth Proportional to 13,623.72, 20,435.18 and 3,763.59

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Solution

The fourth proportional to 13,623.72, 20,435.18 and 3,763.59 is: 5,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.72 : 20,435.18 = 3,763.59 : x
  2. Step 2: Convert to fraction form
    13,623.72/20,435.18 = 3,763.59/x
  3. Step 3: Cross multiply
    13,623.72x = 20,435.18 × 3,763.59
  4. Step 4: Simplify right side
    13,623.72x = 76,909,620.28
  5. Step 5: Solve for x
    x = 76,909,620.28/13,623.72
  6. Step 6: Final answer
    x = 5,645.27

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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.