Home / 11,257.11-16,890.86-5,990.80

Finding the Fourth Proportional to 11,257.11, 16,890.86 and 5,990.80

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Solution

The fourth proportional to 11,257.11, 16,890.86 and 5,990.80 is: 8,988.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.11 : 16,890.86 = 5,990.80 : x
  2. Step 2: Convert to fraction form
    11,257.11/16,890.86 = 5,990.80/x
  3. Step 3: Cross multiply
    11,257.11x = 16,890.86 × 5,990.80
  4. Step 4: Simplify right side
    11,257.11x = 101,189,764.09
  5. Step 5: Solve for x
    x = 101,189,764.09/11,257.11
  6. Step 6: Final answer
    x = 8,988.96

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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.