Home / 12,170.86-18,261.97-11,974.30

Finding the Fourth Proportional to 12,170.86, 18,261.97 and 11,974.30

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Solution

The fourth proportional to 12,170.86, 18,261.97 and 11,974.30 is: 17,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.86 : 18,261.97 = 11,974.30 : x
  2. Step 2: Convert to fraction form
    12,170.86/18,261.97 = 11,974.30/x
  3. Step 3: Cross multiply
    12,170.86x = 18,261.97 × 11,974.30
  4. Step 4: Simplify right side
    12,170.86x = 218,674,307.37
  5. Step 5: Solve for x
    x = 218,674,307.37/12,170.86
  6. Step 6: Final answer
    x = 17,967.04

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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.