Home / 12,613.14-17,400.26-8,138.32

Finding the Fourth Proportional to 12,613.14, 17,400.26 and 8,138.32

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Solution

The fourth proportional to 12,613.14, 17,400.26 and 8,138.32 is: 11,227.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,613.14 : 17,400.26 = 8,138.32 : x
  2. Step 2: Convert to fraction form
    12,613.14/17,400.26 = 8,138.32/x
  3. Step 3: Cross multiply
    12,613.14x = 17,400.26 × 8,138.32
  4. Step 4: Simplify right side
    12,613.14x = 141,608,883.96
  5. Step 5: Solve for x
    x = 141,608,883.96/12,613.14
  6. Step 6: Final answer
    x = 11,227.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.