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Finding the Fourth Proportional to 12,047.48, 18,074.46 and 4,255.32

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Solution

The fourth proportional to 12,047.48, 18,074.46 and 4,255.32 is: 6,384.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,047.48 : 18,074.46 = 4,255.32 : x
  2. Step 2: Convert to fraction form
    12,047.48/18,074.46 = 4,255.32/x
  3. Step 3: Cross multiply
    12,047.48x = 18,074.46 × 4,255.32
  4. Step 4: Simplify right side
    12,047.48x = 76,912,611.13
  5. Step 5: Solve for x
    x = 76,912,611.13/12,047.48
  6. Step 6: Final answer
    x = 6,384.12

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