Home / 18,163.80-27,245.70-8,322.30

Finding the Fourth Proportional to 18,163.80, 27,245.70 and 8,322.30

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Solution

The fourth proportional to 18,163.80, 27,245.70 and 8,322.30 is: 12,483.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.80 : 27,245.70 = 8,322.30 : x
  2. Step 2: Convert to fraction form
    18,163.80/27,245.70 = 8,322.30/x
  3. Step 3: Cross multiply
    18,163.80x = 27,245.70 × 8,322.30
  4. Step 4: Simplify right side
    18,163.80x = 226,746,889.11
  5. Step 5: Solve for x
    x = 226,746,889.11/18,163.80
  6. Step 6: Final answer
    x = 12,483.45

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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.