Home / 18,350.76-27,514.80-12,489.60

Finding the Fourth Proportional to 18,350.76, 27,514.80 and 12,489.60

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Solution

The fourth proportional to 18,350.76, 27,514.80 and 12,489.60 is: 18,726.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,350.76 : 27,514.80 = 12,489.60 : x
  2. Step 2: Convert to fraction form
    18,350.76/27,514.80 = 12,489.60/x
  3. Step 3: Cross multiply
    18,350.76x = 27,514.80 × 12,489.60
  4. Step 4: Simplify right side
    18,350.76x = 343,648,846.08
  5. Step 5: Solve for x
    x = 343,648,846.08/18,350.76
  6. Step 6: Final answer
    x = 18,726.68

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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.