Home / 12,376.20-18,548.10-4,974.60

Finding the Fourth Proportional to 12,376.20, 18,548.10 and 4,974.60

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Solution

The fourth proportional to 12,376.20, 18,548.10 and 4,974.60 is: 7,455.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.20 : 18,548.10 = 4,974.60 : x
  2. Step 2: Convert to fraction form
    12,376.20/18,548.10 = 4,974.60/x
  3. Step 3: Cross multiply
    12,376.20x = 18,548.10 × 4,974.60
  4. Step 4: Simplify right side
    12,376.20x = 92,269,378.26
  5. Step 5: Solve for x
    x = 92,269,378.26/12,376.20
  6. Step 6: Final answer
    x = 7,455.39

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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.