Home / 18,815.08-28,198.18-14,098.04

Finding the Fourth Proportional to 18,815.08, 28,198.18 and 14,098.04

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Solution

The fourth proportional to 18,815.08, 28,198.18 and 14,098.04 is: 21,128.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.08 : 28,198.18 = 14,098.04 : x
  2. Step 2: Convert to fraction form
    18,815.08/28,198.18 = 14,098.04/x
  3. Step 3: Cross multiply
    18,815.08x = 28,198.18 × 14,098.04
  4. Step 4: Simplify right side
    18,815.08x = 397,539,069.57
  5. Step 5: Solve for x
    x = 397,539,069.57/18,815.08
  6. Step 6: Final answer
    x = 21,128.75

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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.