Home / 11,961.20-17,980.68-10,734.32

Finding the Fourth Proportional to 11,961.20, 17,980.68 and 10,734.32

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Solution

The fourth proportional to 11,961.20, 17,980.68 and 10,734.32 is: 16,136.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.20 : 17,980.68 = 10,734.32 : x
  2. Step 2: Convert to fraction form
    11,961.20/17,980.68 = 10,734.32/x
  3. Step 3: Cross multiply
    11,961.20x = 17,980.68 × 10,734.32
  4. Step 4: Simplify right side
    11,961.20x = 193,010,372.94
  5. Step 5: Solve for x
    x = 193,010,372.94/11,961.20
  6. Step 6: Final answer
    x = 16,136.37

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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.