Home / 13,768.38-20,651.50-4,409.37

Finding the Fourth Proportional to 13,768.38, 20,651.50 and 4,409.37

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Solution

The fourth proportional to 13,768.38, 20,651.50 and 4,409.37 is: 6,613.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768.38 : 20,651.50 = 4,409.37 : x
  2. Step 2: Convert to fraction form
    13,768.38/20,651.50 = 4,409.37/x
  3. Step 3: Cross multiply
    13,768.38x = 20,651.50 × 4,409.37
  4. Step 4: Simplify right side
    13,768.38x = 91,060,156.18
  5. Step 5: Solve for x
    x = 91,060,156.18/13,768.38
  6. Step 6: Final answer
    x = 6,613.72

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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.