Home / 15,640.44-23,450.94-8,240.28

Finding the Fourth Proportional to 15,640.44, 23,450.94 and 8,240.28

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Solution

The fourth proportional to 15,640.44, 23,450.94 and 8,240.28 is: 12,355.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.44 : 23,450.94 = 8,240.28 : x
  2. Step 2: Convert to fraction form
    15,640.44/23,450.94 = 8,240.28/x
  3. Step 3: Cross multiply
    15,640.44x = 23,450.94 × 8,240.28
  4. Step 4: Simplify right side
    15,640.44x = 193,242,311.86
  5. Step 5: Solve for x
    x = 193,242,311.86/15,640.44
  6. Step 6: Final answer
    x = 12,355.30

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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.