Home / 11,422.32-17,132.44-8,104.80

Finding the Fourth Proportional to 11,422.32, 17,132.44 and 8,104.80

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Solution

The fourth proportional to 11,422.32, 17,132.44 and 8,104.80 is: 12,156.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,422.32 : 17,132.44 = 8,104.80 : x
  2. Step 2: Convert to fraction form
    11,422.32/17,132.44 = 8,104.80/x
  3. Step 3: Cross multiply
    11,422.32x = 17,132.44 × 8,104.80
  4. Step 4: Simplify right side
    11,422.32x = 138,854,999.71
  5. Step 5: Solve for x
    x = 138,854,999.71/11,422.32
  6. Step 6: Final answer
    x = 12,156.46

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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.