Home / 10,201.75-15,288.26-8,112.49

Finding the Fourth Proportional to 10,201.75, 15,288.26 and 8,112.49

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Solution

The fourth proportional to 10,201.75, 15,288.26 and 8,112.49 is: 12,157.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,201.75 : 15,288.26 = 8,112.49 : x
  2. Step 2: Convert to fraction form
    10,201.75/15,288.26 = 8,112.49/x
  3. Step 3: Cross multiply
    10,201.75x = 15,288.26 × 8,112.49
  4. Step 4: Simplify right side
    10,201.75x = 124,025,856.37
  5. Step 5: Solve for x
    x = 124,025,856.37/10,201.75
  6. Step 6: Final answer
    x = 12,157.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.