Home / 18,711.39-28,067.69-9,824.47

Finding the Fourth Proportional to 18,711.39, 28,067.69 and 9,824.47

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Solution

The fourth proportional to 18,711.39, 28,067.69 and 9,824.47 is: 14,737.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.39 : 28,067.69 = 9,824.47 : x
  2. Step 2: Convert to fraction form
    18,711.39/28,067.69 = 9,824.47/x
  3. Step 3: Cross multiply
    18,711.39x = 28,067.69 × 9,824.47
  4. Step 4: Simplify right side
    18,711.39x = 275,750,178.37
  5. Step 5: Solve for x
    x = 275,750,178.37/18,711.39
  6. Step 6: Final answer
    x = 14,737.02

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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.