Home / 13,558.50-20,338.11-4,324.50

Finding the Fourth Proportional to 13,558.50, 20,338.11 and 4,324.50

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Solution

The fourth proportional to 13,558.50, 20,338.11 and 4,324.50 is: 6,486.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.50 : 20,338.11 = 4,324.50 : x
  2. Step 2: Convert to fraction form
    13,558.50/20,338.11 = 4,324.50/x
  3. Step 3: Cross multiply
    13,558.50x = 20,338.11 × 4,324.50
  4. Step 4: Simplify right side
    13,558.50x = 87,952,156.70
  5. Step 5: Solve for x
    x = 87,952,156.70/13,558.50
  6. Step 6: Final answer
    x = 6,486.86

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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.