Home / 11,860.84-17,790.65-3,540.92

Finding the Fourth Proportional to 11,860.84, 17,790.65 and 3,540.92

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Solution

The fourth proportional to 11,860.84, 17,790.65 and 3,540.92 is: 5,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.84 : 17,790.65 = 3,540.92 : x
  2. Step 2: Convert to fraction form
    11,860.84/17,790.65 = 3,540.92/x
  3. Step 3: Cross multiply
    11,860.84x = 17,790.65 × 3,540.92
  4. Step 4: Simplify right side
    11,860.84x = 62,995,290.69
  5. Step 5: Solve for x
    x = 62,995,290.69/11,860.84
  6. Step 6: Final answer
    x = 5,311.20

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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.