Home / 11,939.30-17,909.36-3,174.23

Finding the Fourth Proportional to 11,939.30, 17,909.36 and 3,174.23

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Solution

The fourth proportional to 11,939.30, 17,909.36 and 3,174.23 is: 4,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.30 : 17,909.36 = 3,174.23 : x
  2. Step 2: Convert to fraction form
    11,939.30/17,909.36 = 3,174.23/x
  3. Step 3: Cross multiply
    11,939.30x = 17,909.36 × 3,174.23
  4. Step 4: Simplify right side
    11,939.30x = 56,848,322.37
  5. Step 5: Solve for x
    x = 56,848,322.37/11,939.30
  6. Step 6: Final answer
    x = 4,761.45

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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.