Home / 9,379.20-14,071.68-2,805.60

Finding the Fourth Proportional to 9,379.20, 14,071.68 and 2,805.60

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Solution

The fourth proportional to 9,379.20, 14,071.68 and 2,805.60 is: 4,209.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,379.20 : 14,071.68 = 2,805.60 : x
  2. Step 2: Convert to fraction form
    9,379.20/14,071.68 = 2,805.60/x
  3. Step 3: Cross multiply
    9,379.20x = 14,071.68 × 2,805.60
  4. Step 4: Simplify right side
    9,379.20x = 39,479,505.41
  5. Step 5: Solve for x
    x = 39,479,505.41/9,379.20
  6. Step 6: Final answer
    x = 4,209.26

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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.