Home / 26,911.99-40,369.43-8,190.60

Finding the Fourth Proportional to 26,911.99, 40,369.43 and 8,190.60

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Solution

The fourth proportional to 26,911.99, 40,369.43 and 8,190.60 is: 12,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,911.99 : 40,369.43 = 8,190.60 : x
  2. Step 2: Convert to fraction form
    26,911.99/40,369.43 = 8,190.60/x
  3. Step 3: Cross multiply
    26,911.99x = 40,369.43 × 8,190.60
  4. Step 4: Simplify right side
    26,911.99x = 330,649,853.36
  5. Step 5: Solve for x
    x = 330,649,853.36/26,911.99
  6. Step 6: Final answer
    x = 12,286.34

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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.