Home / 13,586.90-20,380.35-3,726.25

Finding the Fourth Proportional to 13,586.90, 20,380.35 and 3,726.25

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Solution

The fourth proportional to 13,586.90, 20,380.35 and 3,726.25 is: 5,589.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.90 : 20,380.35 = 3,726.25 : x
  2. Step 2: Convert to fraction form
    13,586.90/20,380.35 = 3,726.25/x
  3. Step 3: Cross multiply
    13,586.90x = 20,380.35 × 3,726.25
  4. Step 4: Simplify right side
    13,586.90x = 75,942,242.21
  5. Step 5: Solve for x
    x = 75,942,242.21/13,586.90
  6. Step 6: Final answer
    x = 5,589.37

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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.