Home / 18,987.96-28,481.94-5,840.04

Finding the Fourth Proportional to 18,987.96, 28,481.94 and 5,840.04

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Solution

The fourth proportional to 18,987.96, 28,481.94 and 5,840.04 is: 8,760.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987.96 : 28,481.94 = 5,840.04 : x
  2. Step 2: Convert to fraction form
    18,987.96/28,481.94 = 5,840.04/x
  3. Step 3: Cross multiply
    18,987.96x = 28,481.94 × 5,840.04
  4. Step 4: Simplify right side
    18,987.96x = 166,335,668.88
  5. Step 5: Solve for x
    x = 166,335,668.88/18,987.96
  6. Step 6: Final answer
    x = 8,760.06

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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.