Home / 13,121.26-19,662.45-10,797.78

Finding the Fourth Proportional to 13,121.26, 19,662.45 and 10,797.78

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Solution

The fourth proportional to 13,121.26, 19,662.45 and 10,797.78 is: 16,180.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121.26 : 19,662.45 = 10,797.78 : x
  2. Step 2: Convert to fraction form
    13,121.26/19,662.45 = 10,797.78/x
  3. Step 3: Cross multiply
    13,121.26x = 19,662.45 × 10,797.78
  4. Step 4: Simplify right side
    13,121.26x = 212,310,809.36
  5. Step 5: Solve for x
    x = 212,310,809.36/13,121.26
  6. Step 6: Final answer
    x = 16,180.67

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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.