Home / 12,556.50-18,835.11-3,322.50

Finding the Fourth Proportional to 12,556.50, 18,835.11 and 3,322.50

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Solution

The fourth proportional to 12,556.50, 18,835.11 and 3,322.50 is: 4,983.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.50 : 18,835.11 = 3,322.50 : x
  2. Step 2: Convert to fraction form
    12,556.50/18,835.11 = 3,322.50/x
  3. Step 3: Cross multiply
    12,556.50x = 18,835.11 × 3,322.50
  4. Step 4: Simplify right side
    12,556.50x = 62,579,652.98
  5. Step 5: Solve for x
    x = 62,579,652.98/12,556.50
  6. Step 6: Final answer
    x = 4,983.85

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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.