Home / 11,724.66-16,180.44-6,419.51

Finding the Fourth Proportional to 11,724.66, 16,180.44 and 6,419.51

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Solution

The fourth proportional to 11,724.66, 16,180.44 and 6,419.51 is: 8,859.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.66 : 16,180.44 = 6,419.51 : x
  2. Step 2: Convert to fraction form
    11,724.66/16,180.44 = 6,419.51/x
  3. Step 3: Cross multiply
    11,724.66x = 16,180.44 × 6,419.51
  4. Step 4: Simplify right side
    11,724.66x = 103,870,520.79
  5. Step 5: Solve for x
    x = 103,870,520.79/11,724.66
  6. Step 6: Final answer
    x = 8,859.15

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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.