Home / 12,327.11-18,485.26-3,891.50

Finding the Fourth Proportional to 12,327.11, 18,485.26 and 3,891.50

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Solution

The fourth proportional to 12,327.11, 18,485.26 and 3,891.50 is: 5,835.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,327.11 : 18,485.26 = 3,891.50 : x
  2. Step 2: Convert to fraction form
    12,327.11/18,485.26 = 3,891.50/x
  3. Step 3: Cross multiply
    12,327.11x = 18,485.26 × 3,891.50
  4. Step 4: Simplify right side
    12,327.11x = 71,935,389.29
  5. Step 5: Solve for x
    x = 71,935,389.29/12,327.11
  6. Step 6: Final answer
    x = 5,835.54

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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.