Home / 13,469.39-20,181.80-6,886.52

Finding the Fourth Proportional to 13,469.39, 20,181.80 and 6,886.52

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Solution

The fourth proportional to 13,469.39, 20,181.80 and 6,886.52 is: 10,318.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469.39 : 20,181.80 = 6,886.52 : x
  2. Step 2: Convert to fraction form
    13,469.39/20,181.80 = 6,886.52/x
  3. Step 3: Cross multiply
    13,469.39x = 20,181.80 × 6,886.52
  4. Step 4: Simplify right side
    13,469.39x = 138,982,369.34
  5. Step 5: Solve for x
    x = 138,982,369.34/13,469.39
  6. Step 6: Final answer
    x = 10,318.39

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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.