Home / 8,157.18-12,220.87-3,772.24

Finding the Fourth Proportional to 8,157.18, 12,220.87 and 3,772.24

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Solution

The fourth proportional to 8,157.18, 12,220.87 and 3,772.24 is: 5,651.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.18 : 12,220.87 = 3,772.24 : x
  2. Step 2: Convert to fraction form
    8,157.18/12,220.87 = 3,772.24/x
  3. Step 3: Cross multiply
    8,157.18x = 12,220.87 × 3,772.24
  4. Step 4: Simplify right side
    8,157.18x = 46,100,054.65
  5. Step 5: Solve for x
    x = 46,100,054.65/8,157.18
  6. Step 6: Final answer
    x = 5,651.47

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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.