Home / 19,186.79-28,811.45-11,837.96

Finding the Fourth Proportional to 19,186.79, 28,811.45 and 11,837.96

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Solution

The fourth proportional to 19,186.79, 28,811.45 and 11,837.96 is: 17,776.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,186.79 : 28,811.45 = 11,837.96 : x
  2. Step 2: Convert to fraction form
    19,186.79/28,811.45 = 11,837.96/x
  3. Step 3: Cross multiply
    19,186.79x = 28,811.45 × 11,837.96
  4. Step 4: Simplify right side
    19,186.79x = 341,068,589.39
  5. Step 5: Solve for x
    x = 341,068,589.39/19,186.79
  6. Step 6: Final answer
    x = 17,776.22

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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.