Home / 18,884.88-28,328.28-7,198.96

Finding the Fourth Proportional to 18,884.88, 28,328.28 and 7,198.96

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Solution

The fourth proportional to 18,884.88, 28,328.28 and 7,198.96 is: 10,798.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884.88 : 28,328.28 = 7,198.96 : x
  2. Step 2: Convert to fraction form
    18,884.88/28,328.28 = 7,198.96/x
  3. Step 3: Cross multiply
    18,884.88x = 28,328.28 × 7,198.96
  4. Step 4: Simplify right side
    18,884.88x = 203,934,154.59
  5. Step 5: Solve for x
    x = 203,934,154.59/18,884.88
  6. Step 6: Final answer
    x = 10,798.81

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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.