Home / 13,812.24-19,056.60-7,843.44

Finding the Fourth Proportional to 13,812.24, 19,056.60 and 7,843.44

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Solution

The fourth proportional to 13,812.24, 19,056.60 and 7,843.44 is: 10,821.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.24 : 19,056.60 = 7,843.44 : x
  2. Step 2: Convert to fraction form
    13,812.24/19,056.60 = 7,843.44/x
  3. Step 3: Cross multiply
    13,812.24x = 19,056.60 × 7,843.44
  4. Step 4: Simplify right side
    13,812.24x = 149,469,298.70
  5. Step 5: Solve for x
    x = 149,469,298.70/13,812.24
  6. Step 6: Final answer
    x = 10,821.51

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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.