Home / 13,586.87-20,380.28-3,726.14

Finding the Fourth Proportional to 13,586.87, 20,380.28 and 3,726.14

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Solution

The fourth proportional to 13,586.87, 20,380.28 and 3,726.14 is: 5,589.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.87 : 20,380.28 = 3,726.14 : x
  2. Step 2: Convert to fraction form
    13,586.87/20,380.28 = 3,726.14/x
  3. Step 3: Cross multiply
    13,586.87x = 20,380.28 × 3,726.14
  4. Step 4: Simplify right side
    13,586.87x = 75,939,655.99
  5. Step 5: Solve for x
    x = 75,939,655.99/13,586.87
  6. Step 6: Final answer
    x = 5,589.19

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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.