Home / 13,813.05-19,061.96-7,844.43

Finding the Fourth Proportional to 13,813.05, 19,061.96 and 7,844.43

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Solution

The fourth proportional to 13,813.05, 19,061.96 and 7,844.43 is: 10,825.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813.05 : 19,061.96 = 7,844.43 : x
  2. Step 2: Convert to fraction form
    13,813.05/19,061.96 = 7,844.43/x
  3. Step 3: Cross multiply
    13,813.05x = 19,061.96 × 7,844.43
  4. Step 4: Simplify right side
    13,813.05x = 149,530,171.66
  5. Step 5: Solve for x
    x = 149,530,171.66/13,813.05
  6. Step 6: Final answer
    x = 10,825.28

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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.