Home / 13,840.61-19,100.04-7,873.43

Finding the Fourth Proportional to 13,840.61, 19,100.04 and 7,873.43

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Solution

The fourth proportional to 13,840.61, 19,100.04 and 7,873.43 is: 10,865.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.61 : 19,100.04 = 7,873.43 : x
  2. Step 2: Convert to fraction form
    13,840.61/19,100.04 = 7,873.43/x
  3. Step 3: Cross multiply
    13,840.61x = 19,100.04 × 7,873.43
  4. Step 4: Simplify right side
    13,840.61x = 150,382,827.94
  5. Step 5: Solve for x
    x = 150,382,827.94/13,840.61
  6. Step 6: Final answer
    x = 10,865.33

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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.