Home / 13,144.44-18,137.12-7,837.32

Finding the Fourth Proportional to 13,144.44, 18,137.12 and 7,837.32

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Solution

The fourth proportional to 13,144.44, 18,137.12 and 7,837.32 is: 10,814.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,144.44 : 18,137.12 = 7,837.32 : x
  2. Step 2: Convert to fraction form
    13,144.44/18,137.12 = 7,837.32/x
  3. Step 3: Cross multiply
    13,144.44x = 18,137.12 × 7,837.32
  4. Step 4: Simplify right side
    13,144.44x = 142,146,413.32
  5. Step 5: Solve for x
    x = 142,146,413.32/13,144.44
  6. Step 6: Final answer
    x = 10,814.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.