Home / 18,829.90-28,237.62-6,346.55

Finding the Fourth Proportional to 18,829.90, 28,237.62 and 6,346.55

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Solution

The fourth proportional to 18,829.90, 28,237.62 and 6,346.55 is: 9,517.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.90 : 28,237.62 = 6,346.55 : x
  2. Step 2: Convert to fraction form
    18,829.90/28,237.62 = 6,346.55/x
  3. Step 3: Cross multiply
    18,829.90x = 28,237.62 × 6,346.55
  4. Step 4: Simplify right side
    18,829.90x = 179,211,396.62
  5. Step 5: Solve for x
    x = 179,211,396.62/18,829.90
  6. Step 6: Final answer
    x = 9,517.39

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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.