Home / 13,181.12-19,769.48-4,414.88

Finding the Fourth Proportional to 13,181.12, 19,769.48 and 4,414.88

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Solution

The fourth proportional to 13,181.12, 19,769.48 and 4,414.88 is: 6,621.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.12 : 19,769.48 = 4,414.88 : x
  2. Step 2: Convert to fraction form
    13,181.12/19,769.48 = 4,414.88/x
  3. Step 3: Cross multiply
    13,181.12x = 19,769.48 × 4,414.88
  4. Step 4: Simplify right side
    13,181.12x = 87,279,881.86
  5. Step 5: Solve for x
    x = 87,279,881.86/13,181.12
  6. Step 6: Final answer
    x = 6,621.58

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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.