Home / 11,910.98-17,867.12-3,145.66

Finding the Fourth Proportional to 11,910.98, 17,867.12 and 3,145.66

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Solution

The fourth proportional to 11,910.98, 17,867.12 and 3,145.66 is: 4,718.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.98 : 17,867.12 = 3,145.66 : x
  2. Step 2: Convert to fraction form
    11,910.98/17,867.12 = 3,145.66/x
  3. Step 3: Cross multiply
    11,910.98x = 17,867.12 × 3,145.66
  4. Step 4: Simplify right side
    11,910.98x = 56,203,824.30
  5. Step 5: Solve for x
    x = 56,203,824.30/11,910.98
  6. Step 6: Final answer
    x = 4,718.66

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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.