Home / 13,553.21-20,331.75-4,194.05

Finding the Fourth Proportional to 13,553.21, 20,331.75 and 4,194.05

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Solution

The fourth proportional to 13,553.21, 20,331.75 and 4,194.05 is: 6,291.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.21 : 20,331.75 = 4,194.05 : x
  2. Step 2: Convert to fraction form
    13,553.21/20,331.75 = 4,194.05/x
  3. Step 3: Cross multiply
    13,553.21x = 20,331.75 × 4,194.05
  4. Step 4: Simplify right side
    13,553.21x = 85,272,274.43
  5. Step 5: Solve for x
    x = 85,272,274.43/13,553.21
  6. Step 6: Final answer
    x = 6,291.67

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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.