Home / 8,936.75-12,330.93-5,399.97

Finding the Fourth Proportional to 8,936.75, 12,330.93 and 5,399.97

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Solution

The fourth proportional to 8,936.75, 12,330.93 and 5,399.97 is: 7,450.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.75 : 12,330.93 = 5,399.97 : x
  2. Step 2: Convert to fraction form
    8,936.75/12,330.93 = 5,399.97/x
  3. Step 3: Cross multiply
    8,936.75x = 12,330.93 × 5,399.97
  4. Step 4: Simplify right side
    8,936.75x = 66,586,626.08
  5. Step 5: Solve for x
    x = 66,586,626.08/8,936.75
  6. Step 6: Final answer
    x = 7,450.88

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1.5x scale

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.