Home / 18,801.89-28,203.33-5,474.34

Finding the Fourth Proportional to 18,801.89, 28,203.33 and 5,474.34

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Solution

The fourth proportional to 18,801.89, 28,203.33 and 5,474.34 is: 8,211.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,801.89 : 28,203.33 = 5,474.34 : x
  2. Step 2: Convert to fraction form
    18,801.89/28,203.33 = 5,474.34/x
  3. Step 3: Cross multiply
    18,801.89x = 28,203.33 × 5,474.34
  4. Step 4: Simplify right side
    18,801.89x = 154,394,617.55
  5. Step 5: Solve for x
    x = 154,394,617.55/18,801.89
  6. Step 6: Final answer
    x = 8,211.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.