Home / 13,166.56-18,169.60-7,198.08

Finding the Fourth Proportional to 13,166.56, 18,169.60 and 7,198.08

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Solution

The fourth proportional to 13,166.56, 18,169.60 and 7,198.08 is: 9,933.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.56 : 18,169.60 = 7,198.08 : x
  2. Step 2: Convert to fraction form
    13,166.56/18,169.60 = 7,198.08/x
  3. Step 3: Cross multiply
    13,166.56x = 18,169.60 × 7,198.08
  4. Step 4: Simplify right side
    13,166.56x = 130,786,234.37
  5. Step 5: Solve for x
    x = 130,786,234.37/13,166.56
  6. Step 6: Final answer
    x = 9,933.21

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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.