Home / 6,675.53-9,999.87-3,112.61

Finding the Fourth Proportional to 6,675.53, 9,999.87 and 3,112.61

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Solution

The fourth proportional to 6,675.53, 9,999.87 and 3,112.61 is: 4,662.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,675.53 : 9,999.87 = 3,112.61 : x
  2. Step 2: Convert to fraction form
    6,675.53/9,999.87 = 3,112.61/x
  3. Step 3: Cross multiply
    6,675.53x = 9,999.87 × 3,112.61
  4. Step 4: Simplify right side
    6,675.53x = 31,125,645.36
  5. Step 5: Solve for x
    x = 31,125,645.36/6,675.53
  6. Step 6: Final answer
    x = 4,662.65

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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.