Home / 12,072.44-18,108.38-3,188.39

Finding the Fourth Proportional to 12,072.44, 18,108.38 and 3,188.39

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Solution

The fourth proportional to 12,072.44, 18,108.38 and 3,188.39 is: 4,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.44 : 18,108.38 = 3,188.39 : x
  2. Step 2: Convert to fraction form
    12,072.44/18,108.38 = 3,188.39/x
  3. Step 3: Cross multiply
    12,072.44x = 18,108.38 × 3,188.39
  4. Step 4: Simplify right side
    12,072.44x = 57,736,615.01
  5. Step 5: Solve for x
    x = 57,736,615.01/12,072.44
  6. Step 6: Final answer
    x = 4,782.52

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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.