Home / 11,920.16-17,883.43-4,128.97

Finding the Fourth Proportional to 11,920.16, 17,883.43 and 4,128.97

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Solution

The fourth proportional to 11,920.16, 17,883.43 and 4,128.97 is: 6,194.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,920.16 : 17,883.43 = 4,128.97 : x
  2. Step 2: Convert to fraction form
    11,920.16/17,883.43 = 4,128.97/x
  3. Step 3: Cross multiply
    11,920.16x = 17,883.43 × 4,128.97
  4. Step 4: Simplify right side
    11,920.16x = 73,840,125.32
  5. Step 5: Solve for x
    x = 73,840,125.32/11,920.16
  6. Step 6: Final answer
    x = 6,194.56

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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.