Home / 13,589.66-20,380.79-3,726.59

Finding the Fourth Proportional to 13,589.66, 20,380.79 and 3,726.59

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Solution

The fourth proportional to 13,589.66, 20,380.79 and 3,726.59 is: 5,588.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.66 : 20,380.79 = 3,726.59 : x
  2. Step 2: Convert to fraction form
    13,589.66/20,380.79 = 3,726.59/x
  3. Step 3: Cross multiply
    13,589.66x = 20,380.79 × 3,726.59
  4. Step 4: Simplify right side
    13,589.66x = 75,950,727.67
  5. Step 5: Solve for x
    x = 75,950,727.67/13,589.66
  6. Step 6: Final answer
    x = 5,588.86

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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.