Home / 18,685.09-28,021.52-6,201.75

Finding the Fourth Proportional to 18,685.09, 28,021.52 and 6,201.75

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Solution

The fourth proportional to 18,685.09, 28,021.52 and 6,201.75 is: 9,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.09 : 28,021.52 = 6,201.75 : x
  2. Step 2: Convert to fraction form
    18,685.09/28,021.52 = 6,201.75/x
  3. Step 3: Cross multiply
    18,685.09x = 28,021.52 × 6,201.75
  4. Step 4: Simplify right side
    18,685.09x = 173,782,582.25
  5. Step 5: Solve for x
    x = 173,782,582.25/18,685.09
  6. Step 6: Final answer
    x = 9,300.60

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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.