Home / 13,577.75-20,367.39-4,219.10

Finding the Fourth Proportional to 13,577.75, 20,367.39 and 4,219.10

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Solution

The fourth proportional to 13,577.75, 20,367.39 and 4,219.10 is: 6,328.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,577.75 : 20,367.39 = 4,219.10 : x
  2. Step 2: Convert to fraction form
    13,577.75/20,367.39 = 4,219.10/x
  3. Step 3: Cross multiply
    13,577.75x = 20,367.39 × 4,219.10
  4. Step 4: Simplify right side
    13,577.75x = 85,932,055.15
  5. Step 5: Solve for x
    x = 85,932,055.15/13,577.75
  6. Step 6: Final answer
    x = 6,328.89

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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.