Home / 11,790.96-17,686.68-5,216.88

Finding the Fourth Proportional to 11,790.96, 17,686.68 and 5,216.88

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Solution

The fourth proportional to 11,790.96, 17,686.68 and 5,216.88 is: 7,825.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.96 : 17,686.68 = 5,216.88 : x
  2. Step 2: Convert to fraction form
    11,790.96/17,686.68 = 5,216.88/x
  3. Step 3: Cross multiply
    11,790.96x = 17,686.68 × 5,216.88
  4. Step 4: Simplify right side
    11,790.96x = 92,269,287.16
  5. Step 5: Solve for x
    x = 92,269,287.16/11,790.96
  6. Step 6: Final answer
    x = 7,825.43

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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.