Home / 18,743.78-28,120.54-5,596.15

Finding the Fourth Proportional to 18,743.78, 28,120.54 and 5,596.15

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Solution

The fourth proportional to 18,743.78, 28,120.54 and 5,596.15 is: 8,395.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.78 : 28,120.54 = 5,596.15 : x
  2. Step 2: Convert to fraction form
    18,743.78/28,120.54 = 5,596.15/x
  3. Step 3: Cross multiply
    18,743.78x = 28,120.54 × 5,596.15
  4. Step 4: Simplify right side
    18,743.78x = 157,366,759.92
  5. Step 5: Solve for x
    x = 157,366,759.92/18,743.78
  6. Step 6: Final answer
    x = 8,395.68

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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.