Home / 11,056.20-16,589.70-5,211.80

Finding the Fourth Proportional to 11,056.20, 16,589.70 and 5,211.80

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Solution

The fourth proportional to 11,056.20, 16,589.70 and 5,211.80 is: 7,820.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,056.20 : 16,589.70 = 5,211.80 : x
  2. Step 2: Convert to fraction form
    11,056.20/16,589.70 = 5,211.80/x
  3. Step 3: Cross multiply
    11,056.20x = 16,589.70 × 5,211.80
  4. Step 4: Simplify right side
    11,056.20x = 86,462,198.46
  5. Step 5: Solve for x
    x = 86,462,198.46/11,056.20
  6. Step 6: Final answer
    x = 7,820.25

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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.