Home / 7,837.10-11,755.34-1,993.86

Finding the Fourth Proportional to 7,837.10, 11,755.34 and 1,993.86

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Solution

The fourth proportional to 7,837.10, 11,755.34 and 1,993.86 is: 2,990.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.10 : 11,755.34 = 1,993.86 : x
  2. Step 2: Convert to fraction form
    7,837.10/11,755.34 = 1,993.86/x
  3. Step 3: Cross multiply
    7,837.10x = 11,755.34 × 1,993.86
  4. Step 4: Simplify right side
    7,837.10x = 23,438,499.72
  5. Step 5: Solve for x
    x = 23,438,499.72/7,837.10
  6. Step 6: Final answer
    x = 2,990.71

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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.