Home / 19,513.44-26,930.88-11,131.56

Finding the Fourth Proportional to 19,513.44, 26,930.88 and 11,131.56

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Solution

The fourth proportional to 19,513.44, 26,930.88 and 11,131.56 is: 15,362.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,513.44 : 26,930.88 = 11,131.56 : x
  2. Step 2: Convert to fraction form
    19,513.44/26,930.88 = 11,131.56/x
  3. Step 3: Cross multiply
    19,513.44x = 26,930.88 × 11,131.56
  4. Step 4: Simplify right side
    19,513.44x = 299,782,706.57
  5. Step 5: Solve for x
    x = 299,782,706.57/19,513.44
  6. Step 6: Final answer
    x = 15,362.88

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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.