Home / 13,821.44-19,074.80-7,854.96

Finding the Fourth Proportional to 13,821.44, 19,074.80 and 7,854.96

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Solution

The fourth proportional to 13,821.44, 19,074.80 and 7,854.96 is: 10,840.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.44 : 19,074.80 = 7,854.96 : x
  2. Step 2: Convert to fraction form
    13,821.44/19,074.80 = 7,854.96/x
  3. Step 3: Cross multiply
    13,821.44x = 19,074.80 × 7,854.96
  4. Step 4: Simplify right side
    13,821.44x = 149,831,791.01
  5. Step 5: Solve for x
    x = 149,831,791.01/13,821.44
  6. Step 6: Final answer
    x = 10,840.53

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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.