Home / 19,080.97-28,614.26-7,988.43

Finding the Fourth Proportional to 19,080.97, 28,614.26 and 7,988.43

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Solution

The fourth proportional to 19,080.97, 28,614.26 and 7,988.43 is: 11,979.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,080.97 : 28,614.26 = 7,988.43 : x
  2. Step 2: Convert to fraction form
    19,080.97/28,614.26 = 7,988.43/x
  3. Step 3: Cross multiply
    19,080.97x = 28,614.26 × 7,988.43
  4. Step 4: Simplify right side
    19,080.97x = 228,583,013.01
  5. Step 5: Solve for x
    x = 228,583,013.01/19,080.97
  6. Step 6: Final answer
    x = 11,979.63

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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.