Home / 12,433.60-18,650.56-3,668.64

Finding the Fourth Proportional to 12,433.60, 18,650.56 and 3,668.64

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Solution

The fourth proportional to 12,433.60, 18,650.56 and 3,668.64 is: 5,503.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,433.60 : 18,650.56 = 3,668.64 : x
  2. Step 2: Convert to fraction form
    12,433.60/18,650.56 = 3,668.64/x
  3. Step 3: Cross multiply
    12,433.60x = 18,650.56 × 3,668.64
  4. Step 4: Simplify right side
    12,433.60x = 68,422,190.44
  5. Step 5: Solve for x
    x = 68,422,190.44/12,433.60
  6. Step 6: Final answer
    x = 5,503.01

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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.