Home / 19,613.88-29,404.28-8,512.21

Finding the Fourth Proportional to 19,613.88, 29,404.28 and 8,512.21

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Solution

The fourth proportional to 19,613.88, 29,404.28 and 8,512.21 is: 12,761.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,613.88 : 29,404.28 = 8,512.21 : x
  2. Step 2: Convert to fraction form
    19,613.88/29,404.28 = 8,512.21/x
  3. Step 3: Cross multiply
    19,613.88x = 29,404.28 × 8,512.21
  4. Step 4: Simplify right side
    19,613.88x = 250,295,406.26
  5. Step 5: Solve for x
    x = 250,295,406.26/19,613.88
  6. Step 6: Final answer
    x = 12,761.14

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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.