Home / 13,618.36-18,790.42-7,950.54

Finding the Fourth Proportional to 13,618.36, 18,790.42 and 7,950.54

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Solution

The fourth proportional to 13,618.36, 18,790.42 and 7,950.54 is: 10,970.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.36 : 18,790.42 = 7,950.54 : x
  2. Step 2: Convert to fraction form
    13,618.36/18,790.42 = 7,950.54/x
  3. Step 3: Cross multiply
    13,618.36x = 18,790.42 × 7,950.54
  4. Step 4: Simplify right side
    13,618.36x = 149,393,891.87
  5. Step 5: Solve for x
    x = 149,393,891.87/13,618.36
  6. Step 6: Final answer
    x = 10,970.04

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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.