Home / 7,982.96-11,023.29-5,003.78

Finding the Fourth Proportional to 7,982.96, 11,023.29 and 5,003.78

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Solution

The fourth proportional to 7,982.96, 11,023.29 and 5,003.78 is: 6,909.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.96 : 11,023.29 = 5,003.78 : x
  2. Step 2: Convert to fraction form
    7,982.96/11,023.29 = 5,003.78/x
  3. Step 3: Cross multiply
    7,982.96x = 11,023.29 × 5,003.78
  4. Step 4: Simplify right side
    7,982.96x = 55,158,062.92
  5. Step 5: Solve for x
    x = 55,158,062.92/7,982.96
  6. Step 6: Final answer
    x = 6,909.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.