Home / 11,281.80-16,898.40-6,081.60

Finding the Fourth Proportional to 11,281.80, 16,898.40 and 6,081.60

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Solution

The fourth proportional to 11,281.80, 16,898.40 and 6,081.60 is: 9,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.80 : 16,898.40 = 6,081.60 : x
  2. Step 2: Convert to fraction form
    11,281.80/16,898.40 = 6,081.60/x
  3. Step 3: Cross multiply
    11,281.80x = 16,898.40 × 6,081.60
  4. Step 4: Simplify right side
    11,281.80x = 102,769,309.44
  5. Step 5: Solve for x
    x = 102,769,309.44/11,281.80
  6. Step 6: Final answer
    x = 9,109.30

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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.