Home / 19,613.38-29,403.53-8,511.70

Finding the Fourth Proportional to 19,613.38, 29,403.53 and 8,511.70

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Solution

The fourth proportional to 19,613.38, 29,403.53 and 8,511.70 is: 12,760.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,613.38 : 29,403.53 = 8,511.70 : x
  2. Step 2: Convert to fraction form
    19,613.38/29,403.53 = 8,511.70/x
  3. Step 3: Cross multiply
    19,613.38x = 29,403.53 × 8,511.70
  4. Step 4: Simplify right side
    19,613.38x = 250,274,026.30
  5. Step 5: Solve for x
    x = 250,274,026.30/19,613.38
  6. Step 6: Final answer
    x = 12,760.37

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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.