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Finding the Fourth Proportional to 15,922.50, 21,973.08 and 8,850.60

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Solution

The fourth proportional to 15,922.50, 21,973.08 and 8,850.60 is: 12,213.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,922.50 : 21,973.08 = 8,850.60 : x
  2. Step 2: Convert to fraction form
    15,922.50/21,973.08 = 8,850.60/x
  3. Step 3: Cross multiply
    15,922.50x = 21,973.08 × 8,850.60
  4. Step 4: Simplify right side
    15,922.50x = 194,474,941.85
  5. Step 5: Solve for x
    x = 194,474,941.85/15,922.50
  6. Step 6: Final answer
    x = 12,213.84

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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.