Home / 11,490.89-17,235.75-3,170.98

Finding the Fourth Proportional to 11,490.89, 17,235.75 and 3,170.98

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Solution

The fourth proportional to 11,490.89, 17,235.75 and 3,170.98 is: 4,756.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,490.89 : 17,235.75 = 3,170.98 : x
  2. Step 2: Convert to fraction form
    11,490.89/17,235.75 = 3,170.98/x
  3. Step 3: Cross multiply
    11,490.89x = 17,235.75 × 3,170.98
  4. Step 4: Simplify right side
    11,490.89x = 54,654,218.54
  5. Step 5: Solve for x
    x = 54,654,218.54/11,490.89
  6. Step 6: Final answer
    x = 4,756.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.