Home / 12,419.76-18,629.44-4,100.32

Finding the Fourth Proportional to 12,419.76, 18,629.44 and 4,100.32

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Solution

The fourth proportional to 12,419.76, 18,629.44 and 4,100.32 is: 6,150.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419.76 : 18,629.44 = 4,100.32 : x
  2. Step 2: Convert to fraction form
    12,419.76/18,629.44 = 4,100.32/x
  3. Step 3: Cross multiply
    12,419.76x = 18,629.44 × 4,100.32
  4. Step 4: Simplify right side
    12,419.76x = 76,386,665.42
  5. Step 5: Solve for x
    x = 76,386,665.42/12,419.76
  6. Step 6: Final answer
    x = 6,150.41

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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.