Home / 7,965.30-11,947.57-3,285.23

Finding the Fourth Proportional to 7,965.30, 11,947.57 and 3,285.23

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Solution

The fourth proportional to 7,965.30, 11,947.57 and 3,285.23 is: 4,927.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.30 : 11,947.57 = 3,285.23 : x
  2. Step 2: Convert to fraction form
    7,965.30/11,947.57 = 3,285.23/x
  3. Step 3: Cross multiply
    7,965.30x = 11,947.57 × 3,285.23
  4. Step 4: Simplify right side
    7,965.30x = 39,250,537.05
  5. Step 5: Solve for x
    x = 39,250,537.05/7,965.30
  6. Step 6: Final answer
    x = 4,927.69

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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.