Home / 11,721.51-17,584.29-3,928.50

Finding the Fourth Proportional to 11,721.51, 17,584.29 and 3,928.50

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Solution

The fourth proportional to 11,721.51, 17,584.29 and 3,928.50 is: 5,893.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.51 : 17,584.29 = 3,928.50 : x
  2. Step 2: Convert to fraction form
    11,721.51/17,584.29 = 3,928.50/x
  3. Step 3: Cross multiply
    11,721.51x = 17,584.29 × 3,928.50
  4. Step 4: Simplify right side
    11,721.51x = 69,079,883.27
  5. Step 5: Solve for x
    x = 69,079,883.27/11,721.51
  6. Step 6: Final answer
    x = 5,893.43

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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.