Home / 13,709.80-20,552.22-4,942.72

Finding the Fourth Proportional to 13,709.80, 20,552.22 and 4,942.72

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Solution

The fourth proportional to 13,709.80, 20,552.22 and 4,942.72 is: 7,409.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.80 : 20,552.22 = 4,942.72 : x
  2. Step 2: Convert to fraction form
    13,709.80/20,552.22 = 4,942.72/x
  3. Step 3: Cross multiply
    13,709.80x = 20,552.22 × 4,942.72
  4. Step 4: Simplify right side
    13,709.80x = 101,583,868.84
  5. Step 5: Solve for x
    x = 101,583,868.84/13,709.80
  6. Step 6: Final answer
    x = 7,409.58

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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.