Home / 7,905.98-11,866.15-4,211.36

Finding the Fourth Proportional to 7,905.98, 11,866.15 and 4,211.36

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Solution

The fourth proportional to 7,905.98, 11,866.15 and 4,211.36 is: 6,320.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.98 : 11,866.15 = 4,211.36 : x
  2. Step 2: Convert to fraction form
    7,905.98/11,866.15 = 4,211.36/x
  3. Step 3: Cross multiply
    7,905.98x = 11,866.15 × 4,211.36
  4. Step 4: Simplify right side
    7,905.98x = 49,972,629.46
  5. Step 5: Solve for x
    x = 49,972,629.46/7,905.98
  6. Step 6: Final answer
    x = 6,320.86

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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.