Home / 7,708.21-11,539.78-6,969.54

Finding the Fourth Proportional to 7,708.21, 11,539.78 and 6,969.54

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Solution

The fourth proportional to 7,708.21, 11,539.78 and 6,969.54 is: 10,433.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.21 : 11,539.78 = 6,969.54 : x
  2. Step 2: Convert to fraction form
    7,708.21/11,539.78 = 6,969.54/x
  3. Step 3: Cross multiply
    7,708.21x = 11,539.78 × 6,969.54
  4. Step 4: Simplify right side
    7,708.21x = 80,426,958.30
  5. Step 5: Solve for x
    x = 80,426,958.30/7,708.21
  6. Step 6: Final answer
    x = 10,433.93

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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.