Home / 18,906.87-28,364.53-5,760.27

Finding the Fourth Proportional to 18,906.87, 28,364.53 and 5,760.27

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Solution

The fourth proportional to 18,906.87, 28,364.53 and 5,760.27 is: 8,641.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,906.87 : 28,364.53 = 5,760.27 : x
  2. Step 2: Convert to fraction form
    18,906.87/28,364.53 = 5,760.27/x
  3. Step 3: Cross multiply
    18,906.87x = 28,364.53 × 5,760.27
  4. Step 4: Simplify right side
    18,906.87x = 163,387,351.22
  5. Step 5: Solve for x
    x = 163,387,351.22/18,906.87
  6. Step 6: Final answer
    x = 8,641.69

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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.