Home / 18,982.99-28,454.23-9,629.92

Finding the Fourth Proportional to 18,982.99, 28,454.23 and 9,629.92

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Solution

The fourth proportional to 18,982.99, 28,454.23 and 9,629.92 is: 14,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982.99 : 28,454.23 = 9,629.92 : x
  2. Step 2: Convert to fraction form
    18,982.99/28,454.23 = 9,629.92/x
  3. Step 3: Cross multiply
    18,982.99x = 28,454.23 × 9,629.92
  4. Step 4: Simplify right side
    18,982.99x = 274,011,958.56
  5. Step 5: Solve for x
    x = 274,011,958.56/18,982.99
  6. Step 6: Final answer
    x = 14,434.60

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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.