Home / 8,253.09-11,391.44-5,111.91

Finding the Fourth Proportional to 8,253.09, 11,391.44 and 5,111.91

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Solution

The fourth proportional to 8,253.09, 11,391.44 and 5,111.91 is: 7,055.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.09 : 11,391.44 = 5,111.91 : x
  2. Step 2: Convert to fraction form
    8,253.09/11,391.44 = 5,111.91/x
  3. Step 3: Cross multiply
    8,253.09x = 11,391.44 × 5,111.91
  4. Step 4: Simplify right side
    8,253.09x = 58,231,990.49
  5. Step 5: Solve for x
    x = 58,231,990.49/8,253.09
  6. Step 6: Final answer
    x = 7,055.78

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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.