Home / 8,247.90-12,374.57-5,485.44

Finding the Fourth Proportional to 8,247.90, 12,374.57 and 5,485.44

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Solution

The fourth proportional to 8,247.90, 12,374.57 and 5,485.44 is: 8,229.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247.90 : 12,374.57 = 5,485.44 : x
  2. Step 2: Convert to fraction form
    8,247.90/12,374.57 = 5,485.44/x
  3. Step 3: Cross multiply
    8,247.90x = 12,374.57 × 5,485.44
  4. Step 4: Simplify right side
    8,247.90x = 67,879,933.83
  5. Step 5: Solve for x
    x = 67,879,933.83/8,247.90
  6. Step 6: Final answer
    x = 8,229.97

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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.