Home / 12,958.35-17,884.97-8,115.33

Finding the Fourth Proportional to 12,958.35, 17,884.97 and 8,115.33

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Solution

The fourth proportional to 12,958.35, 17,884.97 and 8,115.33 is: 11,200.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,958.35 : 17,884.97 = 8,115.33 : x
  2. Step 2: Convert to fraction form
    12,958.35/17,884.97 = 8,115.33/x
  3. Step 3: Cross multiply
    12,958.35x = 17,884.97 × 8,115.33
  4. Step 4: Simplify right side
    12,958.35x = 145,142,433.59
  5. Step 5: Solve for x
    x = 145,142,433.59/12,958.35
  6. Step 6: Final answer
    x = 11,200.69

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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.