Home / 14,507.24-20,021.60-8,540.38

Finding the Fourth Proportional to 14,507.24, 20,021.60 and 8,540.38

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Solution

The fourth proportional to 14,507.24, 20,021.60 and 8,540.38 is: 11,786.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,507.24 : 20,021.60 = 8,540.38 : x
  2. Step 2: Convert to fraction form
    14,507.24/20,021.60 = 8,540.38/x
  3. Step 3: Cross multiply
    14,507.24x = 20,021.60 × 8,540.38
  4. Step 4: Simplify right side
    14,507.24x = 170,992,072.21
  5. Step 5: Solve for x
    x = 170,992,072.21/14,507.24
  6. Step 6: Final answer
    x = 11,786.67

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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.