Home / 7,623.72-10,512.99-5,105.43

Finding the Fourth Proportional to 7,623.72, 10,512.99 and 5,105.43

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Solution

The fourth proportional to 7,623.72, 10,512.99 and 5,105.43 is: 7,040.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,623.72 : 10,512.99 = 5,105.43 : x
  2. Step 2: Convert to fraction form
    7,623.72/10,512.99 = 5,105.43/x
  3. Step 3: Cross multiply
    7,623.72x = 10,512.99 × 5,105.43
  4. Step 4: Simplify right side
    7,623.72x = 53,673,334.54
  5. Step 5: Solve for x
    x = 53,673,334.54/7,623.72
  6. Step 6: Final answer
    x = 7,040.31

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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.