Home / 19,143.51-26,413.05-11,181.21

Finding the Fourth Proportional to 19,143.51, 26,413.05 and 11,181.21

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Solution

The fourth proportional to 19,143.51, 26,413.05 and 11,181.21 is: 15,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.51 : 26,413.05 = 11,181.21 : x
  2. Step 2: Convert to fraction form
    19,143.51/26,413.05 = 11,181.21/x
  3. Step 3: Cross multiply
    19,143.51x = 26,413.05 × 11,181.21
  4. Step 4: Simplify right side
    19,143.51x = 295,329,858.79
  5. Step 5: Solve for x
    x = 295,329,858.79/19,143.51
  6. Step 6: Final answer
    x = 15,427.15

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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.