Home / 18,187.45-27,271.94-8,318.27

Finding the Fourth Proportional to 18,187.45, 27,271.94 and 8,318.27

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Solution

The fourth proportional to 18,187.45, 27,271.94 and 8,318.27 is: 12,473.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.45 : 27,271.94 = 8,318.27 : x
  2. Step 2: Convert to fraction form
    18,187.45/27,271.94 = 8,318.27/x
  3. Step 3: Cross multiply
    18,187.45x = 27,271.94 × 8,318.27
  4. Step 4: Simplify right side
    18,187.45x = 226,855,449.32
  5. Step 5: Solve for x
    x = 226,855,449.32/18,187.45
  6. Step 6: Final answer
    x = 12,473.19

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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.