Home / 11,945.28-17,912.64-6,397.68

Finding the Fourth Proportional to 11,945.28, 17,912.64 and 6,397.68

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Solution

The fourth proportional to 11,945.28, 17,912.64 and 6,397.68 is: 9,593.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.28 : 17,912.64 = 6,397.68 : x
  2. Step 2: Convert to fraction form
    11,945.28/17,912.64 = 6,397.68/x
  3. Step 3: Cross multiply
    11,945.28x = 17,912.64 × 6,397.68
  4. Step 4: Simplify right side
    11,945.28x = 114,599,338.68
  5. Step 5: Solve for x
    x = 114,599,338.68/11,945.28
  6. Step 6: Final answer
    x = 9,593.69

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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.