Home / 19,121.61-26,393.27-11,168.22

Finding the Fourth Proportional to 19,121.61, 26,393.27 and 11,168.22

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Solution

The fourth proportional to 19,121.61, 26,393.27 and 11,168.22 is: 15,415.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.61 : 26,393.27 = 11,168.22 : x
  2. Step 2: Convert to fraction form
    19,121.61/26,393.27 = 11,168.22/x
  3. Step 3: Cross multiply
    19,121.61x = 26,393.27 × 11,168.22
  4. Step 4: Simplify right side
    19,121.61x = 294,765,790.04
  5. Step 5: Solve for x
    x = 294,765,790.04/19,121.61
  6. Step 6: Final answer
    x = 15,415.32

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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.