Home / 11,147.43-15,383.94-6,670.33

Finding the Fourth Proportional to 11,147.43, 15,383.94 and 6,670.33

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Solution

The fourth proportional to 11,147.43, 15,383.94 and 6,670.33 is: 9,205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.43 : 15,383.94 = 6,670.33 : x
  2. Step 2: Convert to fraction form
    11,147.43/15,383.94 = 6,670.33/x
  3. Step 3: Cross multiply
    11,147.43x = 15,383.94 × 6,670.33
  4. Step 4: Simplify right side
    11,147.43x = 102,615,943.05
  5. Step 5: Solve for x
    x = 102,615,943.05/11,147.43
  6. Step 6: Final answer
    x = 9,205.34

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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.