Home / 12,405.72-18,604.61-4,083.81

Finding the Fourth Proportional to 12,405.72, 18,604.61 and 4,083.81

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Solution

The fourth proportional to 12,405.72, 18,604.61 and 4,083.81 is: 6,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405.72 : 18,604.61 = 4,083.81 : x
  2. Step 2: Convert to fraction form
    12,405.72/18,604.61 = 4,083.81/x
  3. Step 3: Cross multiply
    12,405.72x = 18,604.61 × 4,083.81
  4. Step 4: Simplify right side
    12,405.72x = 75,977,692.36
  5. Step 5: Solve for x
    x = 75,977,692.36/12,405.72
  6. Step 6: Final answer
    x = 6,124.41

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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.