Home / 11,724.21-16,180.20-6,689.43

Finding the Fourth Proportional to 11,724.21, 16,180.20 and 6,689.43

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Solution

The fourth proportional to 11,724.21, 16,180.20 and 6,689.43 is: 9,231.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.21 : 16,180.20 = 6,689.43 : x
  2. Step 2: Convert to fraction form
    11,724.21/16,180.20 = 6,689.43/x
  3. Step 3: Cross multiply
    11,724.21x = 16,180.20 × 6,689.43
  4. Step 4: Simplify right side
    11,724.21x = 108,236,315.29
  5. Step 5: Solve for x
    x = 108,236,315.29/11,724.21
  6. Step 6: Final answer
    x = 9,231.86

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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.