Home / 13,636.72-20,416.20-9,247.60

Finding the Fourth Proportional to 13,636.72, 20,416.20 and 9,247.60

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Solution

The fourth proportional to 13,636.72, 20,416.20 and 9,247.60 is: 13,845.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.72 : 20,416.20 = 9,247.60 : x
  2. Step 2: Convert to fraction form
    13,636.72/20,416.20 = 9,247.60/x
  3. Step 3: Cross multiply
    13,636.72x = 20,416.20 × 9,247.60
  4. Step 4: Simplify right side
    13,636.72x = 188,800,851.12
  5. Step 5: Solve for x
    x = 188,800,851.12/13,636.72
  6. Step 6: Final answer
    x = 13,845.03

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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.