Home / 10,945.44-15,105.36-8,288.64

Finding the Fourth Proportional to 10,945.44, 15,105.36 and 8,288.64

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Solution

The fourth proportional to 10,945.44, 15,105.36 and 8,288.64 is: 11,438.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,945.44 : 15,105.36 = 8,288.64 : x
  2. Step 2: Convert to fraction form
    10,945.44/15,105.36 = 8,288.64/x
  3. Step 3: Cross multiply
    10,945.44x = 15,105.36 × 8,288.64
  4. Step 4: Simplify right side
    10,945.44x = 125,202,891.11
  5. Step 5: Solve for x
    x = 125,202,891.11/10,945.44
  6. Step 6: Final answer
    x = 11,438.82

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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.