Home / 13,976.60-20,964.88-4,115.96

Finding the Fourth Proportional to 13,976.60, 20,964.88 and 4,115.96

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Solution

The fourth proportional to 13,976.60, 20,964.88 and 4,115.96 is: 6,173.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.60 : 20,964.88 = 4,115.96 : x
  2. Step 2: Convert to fraction form
    13,976.60/20,964.88 = 4,115.96/x
  3. Step 3: Cross multiply
    13,976.60x = 20,964.88 × 4,115.96
  4. Step 4: Simplify right side
    13,976.60x = 86,290,681.20
  5. Step 5: Solve for x
    x = 86,290,681.20/13,976.60
  6. Step 6: Final answer
    x = 6,173.94

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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.