Home / 18,322.64-27,481.61-7,790.72

Finding the Fourth Proportional to 18,322.64, 27,481.61 and 7,790.72

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Solution

The fourth proportional to 18,322.64, 27,481.61 and 7,790.72 is: 11,685.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.64 : 27,481.61 = 7,790.72 : x
  2. Step 2: Convert to fraction form
    18,322.64/27,481.61 = 7,790.72/x
  3. Step 3: Cross multiply
    18,322.64x = 27,481.61 × 7,790.72
  4. Step 4: Simplify right side
    18,322.64x = 214,101,352.30
  5. Step 5: Solve for x
    x = 214,101,352.30/18,322.64
  6. Step 6: Final answer
    x = 11,685.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.