Home / 12,556.94-17,326.68-8,086.70

Finding the Fourth Proportional to 12,556.94, 17,326.68 and 8,086.70

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Solution

The fourth proportional to 12,556.94, 17,326.68 and 8,086.70 is: 11,158.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.94 : 17,326.68 = 8,086.70 : x
  2. Step 2: Convert to fraction form
    12,556.94/17,326.68 = 8,086.70/x
  3. Step 3: Cross multiply
    12,556.94x = 17,326.68 × 8,086.70
  4. Step 4: Simplify right side
    12,556.94x = 140,115,576.52
  5. Step 5: Solve for x
    x = 140,115,576.52/12,556.94
  6. Step 6: Final answer
    x = 11,158.42

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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.