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Finding the Fourth Proportional to 18,222.20, 27,323.20 and 6,372.80

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Solution

The fourth proportional to 18,222.20, 27,323.20 and 6,372.80 is: 9,555.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,222.20 : 27,323.20 = 6,372.80 : x
  2. Step 2: Convert to fraction form
    18,222.20/27,323.20 = 6,372.80/x
  3. Step 3: Cross multiply
    18,222.20x = 27,323.20 × 6,372.80
  4. Step 4: Simplify right side
    18,222.20x = 174,125,288.96
  5. Step 5: Solve for x
    x = 174,125,288.96/18,222.20
  6. Step 6: Final answer
    x = 9,555.67

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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.