Home / 11,920.24-17,879.52-3,154.96

Finding the Fourth Proportional to 11,920.24, 17,879.52 and 3,154.96

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Solution

The fourth proportional to 11,920.24, 17,879.52 and 3,154.96 is: 4,732.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,920.24 : 17,879.52 = 3,154.96 : x
  2. Step 2: Convert to fraction form
    11,920.24/17,879.52 = 3,154.96/x
  3. Step 3: Cross multiply
    11,920.24x = 17,879.52 × 3,154.96
  4. Step 4: Simplify right side
    11,920.24x = 56,409,170.42
  5. Step 5: Solve for x
    x = 56,409,170.42/11,920.24
  6. Step 6: Final answer
    x = 4,732.22

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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.