Home / 13,226.56-18,243.60-9,040.48

Finding the Fourth Proportional to 13,226.56, 18,243.60 and 9,040.48

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Solution

The fourth proportional to 13,226.56, 18,243.60 and 9,040.48 is: 12,469.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.56 : 18,243.60 = 9,040.48 : x
  2. Step 2: Convert to fraction form
    13,226.56/18,243.60 = 9,040.48/x
  3. Step 3: Cross multiply
    13,226.56x = 18,243.60 × 9,040.48
  4. Step 4: Simplify right side
    13,226.56x = 164,930,900.93
  5. Step 5: Solve for x
    x = 164,930,900.93/13,226.56
  6. Step 6: Final answer
    x = 12,469.67

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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.