Home / 18,956.60-28,442.23-7,860.44

Finding the Fourth Proportional to 18,956.60, 28,442.23 and 7,860.44

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Solution

The fourth proportional to 18,956.60, 28,442.23 and 7,860.44 is: 11,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.60 : 28,442.23 = 7,860.44 : x
  2. Step 2: Convert to fraction form
    18,956.60/28,442.23 = 7,860.44/x
  3. Step 3: Cross multiply
    18,956.60x = 28,442.23 × 7,860.44
  4. Step 4: Simplify right side
    18,956.60x = 223,568,442.38
  5. Step 5: Solve for x
    x = 223,568,442.38/18,956.60
  6. Step 6: Final answer
    x = 11,793.70

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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.