Home / 15,913.93-21,961.59-8,744.22

Finding the Fourth Proportional to 15,913.93, 21,961.59 and 8,744.22

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Solution

The fourth proportional to 15,913.93, 21,961.59 and 8,744.22 is: 12,067.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.93 : 21,961.59 = 8,744.22 : x
  2. Step 2: Convert to fraction form
    15,913.93/21,961.59 = 8,744.22/x
  3. Step 3: Cross multiply
    15,913.93x = 21,961.59 × 8,744.22
  4. Step 4: Simplify right side
    15,913.93x = 192,036,974.51
  5. Step 5: Solve for x
    x = 192,036,974.51/15,913.93
  6. Step 6: Final answer
    x = 12,067.23

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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.