Home / 18,690.41-28,034.39-9,930.26

Finding the Fourth Proportional to 18,690.41, 28,034.39 and 9,930.26

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Solution

The fourth proportional to 18,690.41, 28,034.39 and 9,930.26 is: 14,894.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.41 : 28,034.39 = 9,930.26 : x
  2. Step 2: Convert to fraction form
    18,690.41/28,034.39 = 9,930.26/x
  3. Step 3: Cross multiply
    18,690.41x = 28,034.39 × 9,930.26
  4. Step 4: Simplify right side
    18,690.41x = 278,388,591.82
  5. Step 5: Solve for x
    x = 278,388,591.82/18,690.41
  6. Step 6: Final answer
    x = 14,894.73

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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.