Home / 6,659.29-9,987.99-4,186.54

Finding the Fourth Proportional to 6,659.29, 9,987.99 and 4,186.54

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Solution

The fourth proportional to 6,659.29, 9,987.99 and 4,186.54 is: 6,279.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659.29 : 9,987.99 = 4,186.54 : x
  2. Step 2: Convert to fraction form
    6,659.29/9,987.99 = 4,186.54/x
  3. Step 3: Cross multiply
    6,659.29x = 9,987.99 × 4,186.54
  4. Step 4: Simplify right side
    6,659.29x = 41,815,119.65
  5. Step 5: Solve for x
    x = 41,815,119.65/6,659.29
  6. Step 6: Final answer
    x = 6,279.22

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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.