Home / 13,620.27-20,401.68-6,230.94

Finding the Fourth Proportional to 13,620.27, 20,401.68 and 6,230.94

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Solution

The fourth proportional to 13,620.27, 20,401.68 and 6,230.94 is: 9,333.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,620.27 : 20,401.68 = 6,230.94 : x
  2. Step 2: Convert to fraction form
    13,620.27/20,401.68 = 6,230.94/x
  3. Step 3: Cross multiply
    13,620.27x = 20,401.68 × 6,230.94
  4. Step 4: Simplify right side
    13,620.27x = 127,121,643.98
  5. Step 5: Solve for x
    x = 127,121,643.98/13,620.27
  6. Step 6: Final answer
    x = 9,333.27

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1.5x scale

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.