Home / 13,812.05-19,060.57-7,843.43

Finding the Fourth Proportional to 13,812.05, 19,060.57 and 7,843.43

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Solution

The fourth proportional to 13,812.05, 19,060.57 and 7,843.43 is: 10,823.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.05 : 19,060.57 = 7,843.43 : x
  2. Step 2: Convert to fraction form
    13,812.05/19,060.57 = 7,843.43/x
  3. Step 3: Cross multiply
    13,812.05x = 19,060.57 × 7,843.43
  4. Step 4: Simplify right side
    13,812.05x = 149,500,246.56
  5. Step 5: Solve for x
    x = 149,500,246.56/13,812.05
  6. Step 6: Final answer
    x = 10,823.90

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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.