Home / 12,845.39-17,613.45-11,581.38

Finding the Fourth Proportional to 12,845.39, 17,613.45 and 11,581.38

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Solution

The fourth proportional to 12,845.39, 17,613.45 and 11,581.38 is: 15,880.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.39 : 17,613.45 = 11,581.38 : x
  2. Step 2: Convert to fraction form
    12,845.39/17,613.45 = 11,581.38/x
  3. Step 3: Cross multiply
    12,845.39x = 17,613.45 × 11,581.38
  4. Step 4: Simplify right side
    12,845.39x = 203,988,057.56
  5. Step 5: Solve for x
    x = 203,988,057.56/12,845.39
  6. Step 6: Final answer
    x = 15,880.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.