Home / 8,668.37-11,958.50-5,129.54

Finding the Fourth Proportional to 8,668.37, 11,958.50 and 5,129.54

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Solution

The fourth proportional to 8,668.37, 11,958.50 and 5,129.54 is: 7,076.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668.37 : 11,958.50 = 5,129.54 : x
  2. Step 2: Convert to fraction form
    8,668.37/11,958.50 = 5,129.54/x
  3. Step 3: Cross multiply
    8,668.37x = 11,958.50 × 5,129.54
  4. Step 4: Simplify right side
    8,668.37x = 61,341,518.65
  5. Step 5: Solve for x
    x = 61,341,518.65/8,668.37
  6. Step 6: Final answer
    x = 7,076.47

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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.