Home / 13,588.05-20,379.70-3,724.99

Finding the Fourth Proportional to 13,588.05, 20,379.70 and 3,724.99

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Solution

The fourth proportional to 13,588.05, 20,379.70 and 3,724.99 is: 5,586.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.05 : 20,379.70 = 3,724.99 : x
  2. Step 2: Convert to fraction form
    13,588.05/20,379.70 = 3,724.99/x
  3. Step 3: Cross multiply
    13,588.05x = 20,379.70 × 3,724.99
  4. Step 4: Simplify right side
    13,588.05x = 75,914,132.41
  5. Step 5: Solve for x
    x = 75,914,132.41/13,588.05
  6. Step 6: Final answer
    x = 5,586.83

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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.