Home / 19,127.86-28,659.38-11,716.84

Finding the Fourth Proportional to 19,127.86, 28,659.38 and 11,716.84

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Solution

The fourth proportional to 19,127.86, 28,659.38 and 11,716.84 is: 17,555.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.86 : 28,659.38 = 11,716.84 : x
  2. Step 2: Convert to fraction form
    19,127.86/28,659.38 = 11,716.84/x
  3. Step 3: Cross multiply
    19,127.86x = 28,659.38 × 11,716.84
  4. Step 4: Simplify right side
    19,127.86x = 335,797,369.96
  5. Step 5: Solve for x
    x = 335,797,369.96/19,127.86
  6. Step 6: Final answer
    x = 17,555.41

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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.