Home / 13,872.18-19,143.60-7,584.54

Finding the Fourth Proportional to 13,872.18, 19,143.60 and 7,584.54

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Solution

The fourth proportional to 13,872.18, 19,143.60 and 7,584.54 is: 10,466.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.18 : 19,143.60 = 7,584.54 : x
  2. Step 2: Convert to fraction form
    13,872.18/19,143.60 = 7,584.54/x
  3. Step 3: Cross multiply
    13,872.18x = 19,143.60 × 7,584.54
  4. Step 4: Simplify right side
    13,872.18x = 145,195,399.94
  5. Step 5: Solve for x
    x = 145,195,399.94/13,872.18
  6. Step 6: Final answer
    x = 10,466.66

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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.