Home / 11,928.72-17,891.87-3,164.52

Finding the Fourth Proportional to 11,928.72, 17,891.87 and 3,164.52

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Solution

The fourth proportional to 11,928.72, 17,891.87 and 3,164.52 is: 4,746.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.72 : 17,891.87 = 3,164.52 : x
  2. Step 2: Convert to fraction form
    11,928.72/17,891.87 = 3,164.52/x
  3. Step 3: Cross multiply
    11,928.72x = 17,891.87 × 3,164.52
  4. Step 4: Simplify right side
    11,928.72x = 56,619,180.45
  5. Step 5: Solve for x
    x = 56,619,180.45/11,928.72
  6. Step 6: Final answer
    x = 4,746.46

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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.