Home / 13,947.03-19,247.22-8,286.48

Finding the Fourth Proportional to 13,947.03, 19,247.22 and 8,286.48

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Solution

The fourth proportional to 13,947.03, 19,247.22 and 8,286.48 is: 11,435.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.03 : 19,247.22 = 8,286.48 : x
  2. Step 2: Convert to fraction form
    13,947.03/19,247.22 = 8,286.48/x
  3. Step 3: Cross multiply
    13,947.03x = 19,247.22 × 8,286.48
  4. Step 4: Simplify right side
    13,947.03x = 159,491,703.59
  5. Step 5: Solve for x
    x = 159,491,703.59/13,947.03
  6. Step 6: Final answer
    x = 11,435.53

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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.