Home / 8,468.85-11,687.44-5,111.61

Finding the Fourth Proportional to 8,468.85, 11,687.44 and 5,111.61

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Solution

The fourth proportional to 8,468.85, 11,687.44 and 5,111.61 is: 7,054.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.85 : 11,687.44 = 5,111.61 : x
  2. Step 2: Convert to fraction form
    8,468.85/11,687.44 = 5,111.61/x
  3. Step 3: Cross multiply
    8,468.85x = 11,687.44 × 5,111.61
  4. Step 4: Simplify right side
    8,468.85x = 59,741,677.18
  5. Step 5: Solve for x
    x = 59,741,677.18/8,468.85
  6. Step 6: Final answer
    x = 7,054.29

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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.