Home / 12,540.33-17,299.62-8,293.05

Finding the Fourth Proportional to 12,540.33, 17,299.62 and 8,293.05

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Solution

The fourth proportional to 12,540.33, 17,299.62 and 8,293.05 is: 11,440.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.33 : 17,299.62 = 8,293.05 : x
  2. Step 2: Convert to fraction form
    12,540.33/17,299.62 = 8,293.05/x
  3. Step 3: Cross multiply
    12,540.33x = 17,299.62 × 8,293.05
  4. Step 4: Simplify right side
    12,540.33x = 143,466,613.64
  5. Step 5: Solve for x
    x = 143,466,613.64/12,540.33
  6. Step 6: Final answer
    x = 11,440.42

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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.