Home / 12,172.97-18,260.54-3,407.96

Finding the Fourth Proportional to 12,172.97, 18,260.54 and 3,407.96

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Solution

The fourth proportional to 12,172.97, 18,260.54 and 3,407.96 is: 5,112.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.97 : 18,260.54 = 3,407.96 : x
  2. Step 2: Convert to fraction form
    12,172.97/18,260.54 = 3,407.96/x
  3. Step 3: Cross multiply
    12,172.97x = 18,260.54 × 3,407.96
  4. Step 4: Simplify right side
    12,172.97x = 62,231,189.90
  5. Step 5: Solve for x
    x = 62,231,189.90/12,172.97
  6. Step 6: Final answer
    x = 5,112.24

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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.