Home / 13,166.68-18,169.04-7,198.44

Finding the Fourth Proportional to 13,166.68, 18,169.04 and 7,198.44

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Solution

The fourth proportional to 13,166.68, 18,169.04 and 7,198.44 is: 9,933.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.68 : 18,169.04 = 7,198.44 : x
  2. Step 2: Convert to fraction form
    13,166.68/18,169.04 = 7,198.44/x
  3. Step 3: Cross multiply
    13,166.68x = 18,169.04 × 7,198.44
  4. Step 4: Simplify right side
    13,166.68x = 130,788,744.30
  5. Step 5: Solve for x
    x = 130,788,744.30/13,166.68
  6. Step 6: Final answer
    x = 9,933.31

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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.