Home / 18,270.70-25,212.38-10,311.84

Finding the Fourth Proportional to 18,270.70, 25,212.38 and 10,311.84

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Solution

The fourth proportional to 18,270.70, 25,212.38 and 10,311.84 is: 14,229.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.70 : 25,212.38 = 10,311.84 : x
  2. Step 2: Convert to fraction form
    18,270.70/25,212.38 = 10,311.84/x
  3. Step 3: Cross multiply
    18,270.70x = 25,212.38 × 10,311.84
  4. Step 4: Simplify right side
    18,270.70x = 259,986,028.58
  5. Step 5: Solve for x
    x = 259,986,028.58/18,270.70
  6. Step 6: Final answer
    x = 14,229.67

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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.