Home / 13,922.70-19,211.22-7,953.30

Finding the Fourth Proportional to 13,922.70, 19,211.22 and 7,953.30

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Solution

The fourth proportional to 13,922.70, 19,211.22 and 7,953.30 is: 10,974.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.70 : 19,211.22 = 7,953.30 : x
  2. Step 2: Convert to fraction form
    13,922.70/19,211.22 = 7,953.30/x
  3. Step 3: Cross multiply
    13,922.70x = 19,211.22 × 7,953.30
  4. Step 4: Simplify right side
    13,922.70x = 152,792,596.03
  5. Step 5: Solve for x
    x = 152,792,596.03/13,922.70
  6. Step 6: Final answer
    x = 10,974.35

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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.