Home / 13,912.25-19,199.52-7,944.39

Finding the Fourth Proportional to 13,912.25, 19,199.52 and 7,944.39

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Solution

The fourth proportional to 13,912.25, 19,199.52 and 7,944.39 is: 10,963.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.25 : 19,199.52 = 7,944.39 : x
  2. Step 2: Convert to fraction form
    13,912.25/19,199.52 = 7,944.39/x
  3. Step 3: Cross multiply
    13,912.25x = 19,199.52 × 7,944.39
  4. Step 4: Simplify right side
    13,912.25x = 152,528,474.69
  5. Step 5: Solve for x
    x = 152,528,474.69/13,912.25
  6. Step 6: Final answer
    x = 10,963.61

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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.