Home / 7,945.81-11,914.03-3,015.79

Finding the Fourth Proportional to 7,945.81, 11,914.03 and 3,015.79

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Solution

The fourth proportional to 7,945.81, 11,914.03 and 3,015.79 is: 4,521.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.81 : 11,914.03 = 3,015.79 : x
  2. Step 2: Convert to fraction form
    7,945.81/11,914.03 = 3,015.79/x
  3. Step 3: Cross multiply
    7,945.81x = 11,914.03 × 3,015.79
  4. Step 4: Simplify right side
    7,945.81x = 35,930,212.53
  5. Step 5: Solve for x
    x = 35,930,212.53/7,945.81
  6. Step 6: Final answer
    x = 4,521.91

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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.