Home / 11,588.20-17,387.70-8,672.20

Finding the Fourth Proportional to 11,588.20, 17,387.70 and 8,672.20

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Solution

The fourth proportional to 11,588.20, 17,387.70 and 8,672.20 is: 13,012.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,588.20 : 17,387.70 = 8,672.20 : x
  2. Step 2: Convert to fraction form
    11,588.20/17,387.70 = 8,672.20/x
  3. Step 3: Cross multiply
    11,588.20x = 17,387.70 × 8,672.20
  4. Step 4: Simplify right side
    11,588.20x = 150,789,611.94
  5. Step 5: Solve for x
    x = 150,789,611.94/11,588.20
  6. Step 6: Final answer
    x = 13,012.34

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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.