Home / 7,945.29-11,917.94-7,029.79

Finding the Fourth Proportional to 7,945.29, 11,917.94 and 7,029.79

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Solution

The fourth proportional to 7,945.29, 11,917.94 and 7,029.79 is: 10,544.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.29 : 11,917.94 = 7,029.79 : x
  2. Step 2: Convert to fraction form
    7,945.29/11,917.94 = 7,029.79/x
  3. Step 3: Cross multiply
    7,945.29x = 11,917.94 × 7,029.79
  4. Step 4: Simplify right side
    7,945.29x = 83,780,550.49
  5. Step 5: Solve for x
    x = 83,780,550.49/7,945.29
  6. Step 6: Final answer
    x = 10,544.68

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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.