Home / 18,735.87-28,108.22-6,085.57

Finding the Fourth Proportional to 18,735.87, 28,108.22 and 6,085.57

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Solution

The fourth proportional to 18,735.87, 28,108.22 and 6,085.57 is: 9,129.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.87 : 28,108.22 = 6,085.57 : x
  2. Step 2: Convert to fraction form
    18,735.87/28,108.22 = 6,085.57/x
  3. Step 3: Cross multiply
    18,735.87x = 28,108.22 × 6,085.57
  4. Step 4: Simplify right side
    18,735.87x = 171,054,540.39
  5. Step 5: Solve for x
    x = 171,054,540.39/18,735.87
  6. Step 6: Final answer
    x = 9,129.79

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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.