Home / 18,442.20-27,624.40-12,522.72

Finding the Fourth Proportional to 18,442.20, 27,624.40 and 12,522.72

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Solution

The fourth proportional to 18,442.20, 27,624.40 and 12,522.72 is: 18,757.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442.20 : 27,624.40 = 12,522.72 : x
  2. Step 2: Convert to fraction form
    18,442.20/27,624.40 = 12,522.72/x
  3. Step 3: Cross multiply
    18,442.20x = 27,624.40 × 12,522.72
  4. Step 4: Simplify right side
    18,442.20x = 345,932,626.37
  5. Step 5: Solve for x
    x = 345,932,626.37/18,442.20
  6. Step 6: Final answer
    x = 18,757.67

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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.