Home / 7,965.55-11,947.94-3,285.49

Finding the Fourth Proportional to 7,965.55, 11,947.94 and 3,285.49

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Solution

The fourth proportional to 7,965.55, 11,947.94 and 3,285.49 is: 4,928.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.55 : 11,947.94 = 3,285.49 : x
  2. Step 2: Convert to fraction form
    7,965.55/11,947.94 = 3,285.49/x
  3. Step 3: Cross multiply
    7,965.55x = 11,947.94 × 3,285.49
  4. Step 4: Simplify right side
    7,965.55x = 39,254,777.65
  5. Step 5: Solve for x
    x = 39,254,777.65/7,965.55
  6. Step 6: Final answer
    x = 4,928.07

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1.5x scale

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.