Home / 7,987.82-11,020.96-4,629.96

Finding the Fourth Proportional to 7,987.82, 11,020.96 and 4,629.96

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Solution

The fourth proportional to 7,987.82, 11,020.96 and 4,629.96 is: 6,388.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.82 : 11,020.96 = 4,629.96 : x
  2. Step 2: Convert to fraction form
    7,987.82/11,020.96 = 4,629.96/x
  3. Step 3: Cross multiply
    7,987.82x = 11,020.96 × 4,629.96
  4. Step 4: Simplify right side
    7,987.82x = 51,026,609.75
  5. Step 5: Solve for x
    x = 51,026,609.75/7,987.82
  6. Step 6: Final answer
    x = 6,388.06

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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.