Home / 11,166.88-16,817.20-10,170.42

Finding the Fourth Proportional to 11,166.88, 16,817.20 and 10,170.42

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Solution

The fourth proportional to 11,166.88, 16,817.20 and 10,170.42 is: 15,316.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,166.88 : 16,817.20 = 10,170.42 : x
  2. Step 2: Convert to fraction form
    11,166.88/16,817.20 = 10,170.42/x
  3. Step 3: Cross multiply
    11,166.88x = 16,817.20 × 10,170.42
  4. Step 4: Simplify right side
    11,166.88x = 171,037,987.22
  5. Step 5: Solve for x
    x = 171,037,987.22/11,166.88
  6. Step 6: Final answer
    x = 15,316.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.