Home / 19,183.55-28,743.65-8,772.35

Finding the Fourth Proportional to 19,183.55, 28,743.65 and 8,772.35

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Solution

The fourth proportional to 19,183.55, 28,743.65 and 8,772.35 is: 13,144.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183.55 : 28,743.65 = 8,772.35 : x
  2. Step 2: Convert to fraction form
    19,183.55/28,743.65 = 8,772.35/x
  3. Step 3: Cross multiply
    19,183.55x = 28,743.65 × 8,772.35
  4. Step 4: Simplify right side
    19,183.55x = 252,149,314.22
  5. Step 5: Solve for x
    x = 252,149,314.22/19,183.55
  6. Step 6: Final answer
    x = 13,144.04

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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.