Home / 7,709.45-10,629.33-6,291.69

Finding the Fourth Proportional to 7,709.45, 10,629.33 and 6,291.69

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Solution

The fourth proportional to 7,709.45, 10,629.33 and 6,291.69 is: 8,674.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.45 : 10,629.33 = 6,291.69 : x
  2. Step 2: Convert to fraction form
    7,709.45/10,629.33 = 6,291.69/x
  3. Step 3: Cross multiply
    7,709.45x = 10,629.33 × 6,291.69
  4. Step 4: Simplify right side
    7,709.45x = 66,876,449.27
  5. Step 5: Solve for x
    x = 66,876,449.27/7,709.45
  6. Step 6: Final answer
    x = 8,674.61

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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.