Home / 11,540.21-17,313.75-4,145.31

Finding the Fourth Proportional to 11,540.21, 17,313.75 and 4,145.31

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Solution

The fourth proportional to 11,540.21, 17,313.75 and 4,145.31 is: 6,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,540.21 : 17,313.75 = 4,145.31 : x
  2. Step 2: Convert to fraction form
    11,540.21/17,313.75 = 4,145.31/x
  3. Step 3: Cross multiply
    11,540.21x = 17,313.75 × 4,145.31
  4. Step 4: Simplify right side
    11,540.21x = 71,770,861.01
  5. Step 5: Solve for x
    x = 71,770,861.01/11,540.21
  6. Step 6: Final answer
    x = 6,219.20

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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.