Home / 11,947.46-17,912.97-5,280.75

Finding the Fourth Proportional to 11,947.46, 17,912.97 and 5,280.75

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Solution

The fourth proportional to 11,947.46, 17,912.97 and 5,280.75 is: 7,917.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.46 : 17,912.97 = 5,280.75 : x
  2. Step 2: Convert to fraction form
    11,947.46/17,912.97 = 5,280.75/x
  3. Step 3: Cross multiply
    11,947.46x = 17,912.97 × 5,280.75
  4. Step 4: Simplify right side
    11,947.46x = 94,593,916.33
  5. Step 5: Solve for x
    x = 94,593,916.33/11,947.46
  6. Step 6: Final answer
    x = 7,917.50

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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.