Home / 13,198.89-18,214.46-7,230.43

Finding the Fourth Proportional to 13,198.89, 18,214.46 and 7,230.43

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Solution

The fourth proportional to 13,198.89, 18,214.46 and 7,230.43 is: 9,977.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.89 : 18,214.46 = 7,230.43 : x
  2. Step 2: Convert to fraction form
    13,198.89/18,214.46 = 7,230.43/x
  3. Step 3: Cross multiply
    13,198.89x = 18,214.46 × 7,230.43
  4. Step 4: Simplify right side
    13,198.89x = 131,698,350.49
  5. Step 5: Solve for x
    x = 131,698,350.49/13,198.89
  6. Step 6: Final answer
    x = 9,977.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.