Home / 7,982.80-11,016.47-4,625.75

Finding the Fourth Proportional to 7,982.80, 11,016.47 and 4,625.75

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Solution

The fourth proportional to 7,982.80, 11,016.47 and 4,625.75 is: 6,383.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.80 : 11,016.47 = 4,625.75 : x
  2. Step 2: Convert to fraction form
    7,982.80/11,016.47 = 4,625.75/x
  3. Step 3: Cross multiply
    7,982.80x = 11,016.47 × 4,625.75
  4. Step 4: Simplify right side
    7,982.80x = 50,959,436.10
  5. Step 5: Solve for x
    x = 50,959,436.10/7,982.80
  6. Step 6: Final answer
    x = 6,383.65

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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.