Home / 13,236.64-19,858-3,876.44

Finding the Fourth Proportional to 13,236.64, 19,858 and 3,876.44

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Solution

The fourth proportional to 13,236.64, 19,858 and 3,876.44 is: 5,815.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.64 : 19,858 = 3,876.44 : x
  2. Step 2: Convert to fraction form
    13,236.64/19,858 = 3,876.44/x
  3. Step 3: Cross multiply
    13,236.64x = 19,858 × 3,876.44
  4. Step 4: Simplify right side
    13,236.64x = 76,978,345.52
  5. Step 5: Solve for x
    x = 76,978,345.52/13,236.64
  6. Step 6: Final answer
    x = 5,815.55

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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.