Home / 11,888.20-17,832.30-11,207.80

Finding the Fourth Proportional to 11,888.20, 17,832.30 and 11,207.80

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Solution

The fourth proportional to 11,888.20, 17,832.30 and 11,207.80 is: 16,811.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.20 : 17,832.30 = 11,207.80 : x
  2. Step 2: Convert to fraction form
    11,888.20/17,832.30 = 11,207.80/x
  3. Step 3: Cross multiply
    11,888.20x = 17,832.30 × 11,207.80
  4. Step 4: Simplify right side
    11,888.20x = 199,860,851.94
  5. Step 5: Solve for x
    x = 199,860,851.94/11,888.20
  6. Step 6: Final answer
    x = 16,811.70

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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.