Home / 18,958.87-28,455.45-9,605.35

Finding the Fourth Proportional to 18,958.87, 28,455.45 and 9,605.35

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Solution

The fourth proportional to 18,958.87, 28,455.45 and 9,605.35 is: 14,416.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.87 : 28,455.45 = 9,605.35 : x
  2. Step 2: Convert to fraction form
    18,958.87/28,455.45 = 9,605.35/x
  3. Step 3: Cross multiply
    18,958.87x = 28,455.45 × 9,605.35
  4. Step 4: Simplify right side
    18,958.87x = 273,324,556.66
  5. Step 5: Solve for x
    x = 273,324,556.66/18,958.87
  6. Step 6: Final answer
    x = 14,416.71

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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.