Home / 11,182.40-16,773.60-3,390.20

Finding the Fourth Proportional to 11,182.40, 16,773.60 and 3,390.20

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Solution

The fourth proportional to 11,182.40, 16,773.60 and 3,390.20 is: 5,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,182.40 : 16,773.60 = 3,390.20 : x
  2. Step 2: Convert to fraction form
    11,182.40/16,773.60 = 3,390.20/x
  3. Step 3: Cross multiply
    11,182.40x = 16,773.60 × 3,390.20
  4. Step 4: Simplify right side
    11,182.40x = 56,865,858.72
  5. Step 5: Solve for x
    x = 56,865,858.72/11,182.40
  6. Step 6: Final answer
    x = 5,085.30

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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.