Home / 18,998.26-28,499.40-6,514.80

Finding the Fourth Proportional to 18,998.26, 28,499.40 and 6,514.80

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Solution

The fourth proportional to 18,998.26, 28,499.40 and 6,514.80 is: 9,772.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.26 : 28,499.40 = 6,514.80 : x
  2. Step 2: Convert to fraction form
    18,998.26/28,499.40 = 6,514.80/x
  3. Step 3: Cross multiply
    18,998.26x = 28,499.40 × 6,514.80
  4. Step 4: Simplify right side
    18,998.26x = 185,667,891.12
  5. Step 5: Solve for x
    x = 185,667,891.12/18,998.26
  6. Step 6: Final answer
    x = 9,772.89

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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.