Home / 12,382.60-18,573.94-3,148.60

Finding the Fourth Proportional to 12,382.60, 18,573.94 and 3,148.60

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Solution

The fourth proportional to 12,382.60, 18,573.94 and 3,148.60 is: 4,722.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.60 : 18,573.94 = 3,148.60 : x
  2. Step 2: Convert to fraction form
    12,382.60/18,573.94 = 3,148.60/x
  3. Step 3: Cross multiply
    12,382.60x = 18,573.94 × 3,148.60
  4. Step 4: Simplify right side
    12,382.60x = 58,481,907.48
  5. Step 5: Solve for x
    x = 58,481,907.48/12,382.60
  6. Step 6: Final answer
    x = 4,722.91

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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.