Home / 19,121.40-26,393.58-11,166.84

Finding the Fourth Proportional to 19,121.40, 26,393.58 and 11,166.84

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Solution

The fourth proportional to 19,121.40, 26,393.58 and 11,166.84 is: 15,413.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.40 : 26,393.58 = 11,166.84 : x
  2. Step 2: Convert to fraction form
    19,121.40/26,393.58 = 11,166.84/x
  3. Step 3: Cross multiply
    19,121.40x = 26,393.58 × 11,166.84
  4. Step 4: Simplify right side
    19,121.40x = 294,732,884.89
  5. Step 5: Solve for x
    x = 294,732,884.89/19,121.40
  6. Step 6: Final answer
    x = 15,413.77

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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.