Home / 11,771.26-17,663.37-7,157.50

Finding the Fourth Proportional to 11,771.26, 17,663.37 and 7,157.50

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Solution

The fourth proportional to 11,771.26, 17,663.37 and 7,157.50 is: 10,740.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,771.26 : 17,663.37 = 7,157.50 : x
  2. Step 2: Convert to fraction form
    11,771.26/17,663.37 = 7,157.50/x
  3. Step 3: Cross multiply
    11,771.26x = 17,663.37 × 7,157.50
  4. Step 4: Simplify right side
    11,771.26x = 126,425,570.78
  5. Step 5: Solve for x
    x = 126,425,570.78/11,771.26
  6. Step 6: Final answer
    x = 10,740.19

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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.