Home / 13,912.76-19,206.25-7,943.27

Finding the Fourth Proportional to 13,912.76, 19,206.25 and 7,943.27

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Solution

The fourth proportional to 13,912.76, 19,206.25 and 7,943.27 is: 10,965.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.76 : 19,206.25 = 7,943.27 : x
  2. Step 2: Convert to fraction form
    13,912.76/19,206.25 = 7,943.27/x
  3. Step 3: Cross multiply
    13,912.76x = 19,206.25 × 7,943.27
  4. Step 4: Simplify right side
    13,912.76x = 152,560,429.44
  5. Step 5: Solve for x
    x = 152,560,429.44/13,912.76
  6. Step 6: Final answer
    x = 10,965.51

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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.