Home / 11,161.28-16,741.38-4,142.67

Finding the Fourth Proportional to 11,161.28, 16,741.38 and 4,142.67

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Solution

The fourth proportional to 11,161.28, 16,741.38 and 4,142.67 is: 6,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.28 : 16,741.38 = 4,142.67 : x
  2. Step 2: Convert to fraction form
    11,161.28/16,741.38 = 4,142.67/x
  3. Step 3: Cross multiply
    11,161.28x = 16,741.38 × 4,142.67
  4. Step 4: Simplify right side
    11,161.28x = 69,354,012.68
  5. Step 5: Solve for x
    x = 69,354,012.68/11,161.28
  6. Step 6: Final answer
    x = 6,213.80

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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.