Home / 14,515.26-21,791.28-12,079.86

Finding the Fourth Proportional to 14,515.26, 21,791.28 and 12,079.86

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Solution

The fourth proportional to 14,515.26, 21,791.28 and 12,079.86 is: 18,135.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.26 : 21,791.28 = 12,079.86 : x
  2. Step 2: Convert to fraction form
    14,515.26/21,791.28 = 12,079.86/x
  3. Step 3: Cross multiply
    14,515.26x = 21,791.28 × 12,079.86
  4. Step 4: Simplify right side
    14,515.26x = 263,235,611.62
  5. Step 5: Solve for x
    x = 263,235,611.62/14,515.26
  6. Step 6: Final answer
    x = 18,135.09

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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.