Home / 12,168.24-18,245.82-6,242.68

Finding the Fourth Proportional to 12,168.24, 18,245.82 and 6,242.68

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Solution

The fourth proportional to 12,168.24, 18,245.82 and 6,242.68 is: 9,360.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.24 : 18,245.82 = 6,242.68 : x
  2. Step 2: Convert to fraction form
    12,168.24/18,245.82 = 6,242.68/x
  3. Step 3: Cross multiply
    12,168.24x = 18,245.82 × 6,242.68
  4. Step 4: Simplify right side
    12,168.24x = 113,902,861.81
  5. Step 5: Solve for x
    x = 113,902,861.81/12,168.24
  6. Step 6: Final answer
    x = 9,360.67

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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.