Home / 13,840.59-19,100.43-7,871.16

Finding the Fourth Proportional to 13,840.59, 19,100.43 and 7,871.16

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Solution

The fourth proportional to 13,840.59, 19,100.43 and 7,871.16 is: 10,862.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.59 : 19,100.43 = 7,871.16 : x
  2. Step 2: Convert to fraction form
    13,840.59/19,100.43 = 7,871.16/x
  3. Step 3: Cross multiply
    13,840.59x = 19,100.43 × 7,871.16
  4. Step 4: Simplify right side
    13,840.59x = 150,342,540.60
  5. Step 5: Solve for x
    x = 150,342,540.60/13,840.59
  6. Step 6: Final answer
    x = 10,862.44

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.