Home / 18,069.85-27,118.10-8,582.21

Finding the Fourth Proportional to 18,069.85, 27,118.10 and 8,582.21

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Solution

The fourth proportional to 18,069.85, 27,118.10 and 8,582.21 is: 12,879.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,069.85 : 27,118.10 = 8,582.21 : x
  2. Step 2: Convert to fraction form
    18,069.85/27,118.10 = 8,582.21/x
  3. Step 3: Cross multiply
    18,069.85x = 27,118.10 × 8,582.21
  4. Step 4: Simplify right side
    18,069.85x = 232,733,229.00
  5. Step 5: Solve for x
    x = 232,733,229.00/18,069.85
  6. Step 6: Final answer
    x = 12,879.64

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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.