Home / 7,982.39-11,015.72-4,445.73

Finding the Fourth Proportional to 7,982.39, 11,015.72 and 4,445.73

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Solution

The fourth proportional to 7,982.39, 11,015.72 and 4,445.73 is: 6,135.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,982.39 : 11,015.72 = 4,445.73 : x
  2. Step 2: Convert to fraction form
    7,982.39/11,015.72 = 4,445.73/x
  3. Step 3: Cross multiply
    7,982.39x = 11,015.72 × 4,445.73
  4. Step 4: Simplify right side
    7,982.39x = 48,972,894.65
  5. Step 5: Solve for x
    x = 48,972,894.65/7,982.39
  6. Step 6: Final answer
    x = 6,135.12

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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.