Home / 12,419.26-18,628.86-3,654.16

Finding the Fourth Proportional to 12,419.26, 18,628.86 and 3,654.16

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Solution

The fourth proportional to 12,419.26, 18,628.86 and 3,654.16 is: 5,481.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419.26 : 18,628.86 = 3,654.16 : x
  2. Step 2: Convert to fraction form
    12,419.26/18,628.86 = 3,654.16/x
  3. Step 3: Cross multiply
    12,419.26x = 18,628.86 × 3,654.16
  4. Step 4: Simplify right side
    12,419.26x = 68,072,835.06
  5. Step 5: Solve for x
    x = 68,072,835.06/12,419.26
  6. Step 6: Final answer
    x = 5,481.23

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1.5x scale

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.