Home / 13,183.23-18,192.42-7,214.85

Finding the Fourth Proportional to 13,183.23, 18,192.42 and 7,214.85

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Solution

The fourth proportional to 13,183.23, 18,192.42 and 7,214.85 is: 9,956.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.23 : 18,192.42 = 7,214.85 : x
  2. Step 2: Convert to fraction form
    13,183.23/18,192.42 = 7,214.85/x
  3. Step 3: Cross multiply
    13,183.23x = 18,192.42 × 7,214.85
  4. Step 4: Simplify right side
    13,183.23x = 131,255,581.44
  5. Step 5: Solve for x
    x = 131,255,581.44/13,183.23
  6. Step 6: Final answer
    x = 9,956.25

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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.