Home / 19,141.79-26,413.31-11,178.23

Finding the Fourth Proportional to 19,141.79, 26,413.31 and 11,178.23

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Solution

The fourth proportional to 19,141.79, 26,413.31 and 11,178.23 is: 15,424.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,141.79 : 26,413.31 = 11,178.23 : x
  2. Step 2: Convert to fraction form
    19,141.79/26,413.31 = 11,178.23/x
  3. Step 3: Cross multiply
    19,141.79x = 26,413.31 × 11,178.23
  4. Step 4: Simplify right side
    19,141.79x = 295,254,054.24
  5. Step 5: Solve for x
    x = 295,254,054.24/19,141.79
  6. Step 6: Final answer
    x = 15,424.58

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Double scale
Find fourth proportional to 19,142.79, 26,414.69 and 11,179.23
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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.