Home / 12,083.97-18,128.62-4,968.19

Finding the Fourth Proportional to 12,083.97, 18,128.62 and 4,968.19

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Solution

The fourth proportional to 12,083.97, 18,128.62 and 4,968.19 is: 7,453.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.97 : 18,128.62 = 4,968.19 : x
  2. Step 2: Convert to fraction form
    12,083.97/18,128.62 = 4,968.19/x
  3. Step 3: Cross multiply
    12,083.97x = 18,128.62 × 4,968.19
  4. Step 4: Simplify right side
    12,083.97x = 90,066,337.95
  5. Step 5: Solve for x
    x = 90,066,337.95/12,083.97
  6. Step 6: Final answer
    x = 7,453.37

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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.