Home / 13,930.94-20,890.26-6,529.42

Finding the Fourth Proportional to 13,930.94, 20,890.26 and 6,529.42

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Solution

The fourth proportional to 13,930.94, 20,890.26 and 6,529.42 is: 9,791.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.94 : 20,890.26 = 6,529.42 : x
  2. Step 2: Convert to fraction form
    13,930.94/20,890.26 = 6,529.42/x
  3. Step 3: Cross multiply
    13,930.94x = 20,890.26 × 6,529.42
  4. Step 4: Simplify right side
    13,930.94x = 136,401,281.45
  5. Step 5: Solve for x
    x = 136,401,281.45/13,930.94
  6. Step 6: Final answer
    x = 9,791.25

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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.