Home / 11,191.05-16,786.58-2,871.07

Finding the Fourth Proportional to 11,191.05, 16,786.58 and 2,871.07

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Solution

The fourth proportional to 11,191.05, 16,786.58 and 2,871.07 is: 4,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.05 : 16,786.58 = 2,871.07 : x
  2. Step 2: Convert to fraction form
    11,191.05/16,786.58 = 2,871.07/x
  3. Step 3: Cross multiply
    11,191.05x = 16,786.58 × 2,871.07
  4. Step 4: Simplify right side
    11,191.05x = 48,195,347.95
  5. Step 5: Solve for x
    x = 48,195,347.95/11,191.05
  6. Step 6: Final answer
    x = 4,306.60

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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.