Home / 13,369.20-18,450.41-7,400.94

Finding the Fourth Proportional to 13,369.20, 18,450.41 and 7,400.94

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Solution

The fourth proportional to 13,369.20, 18,450.41 and 7,400.94 is: 10,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,369.20 : 18,450.41 = 7,400.94 : x
  2. Step 2: Convert to fraction form
    13,369.20/18,450.41 = 7,400.94/x
  3. Step 3: Cross multiply
    13,369.20x = 18,450.41 × 7,400.94
  4. Step 4: Simplify right side
    13,369.20x = 136,550,340.38
  5. Step 5: Solve for x
    x = 136,550,340.38/13,369.20
  6. Step 6: Final answer
    x = 10,213.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.