Home / 12,172.19-18,260.38-3,852.08

Finding the Fourth Proportional to 12,172.19, 18,260.38 and 3,852.08

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Solution

The fourth proportional to 12,172.19, 18,260.38 and 3,852.08 is: 5,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.19 : 18,260.38 = 3,852.08 : x
  2. Step 2: Convert to fraction form
    12,172.19/18,260.38 = 3,852.08/x
  3. Step 3: Cross multiply
    12,172.19x = 18,260.38 × 3,852.08
  4. Step 4: Simplify right side
    12,172.19x = 70,340,353.29
  5. Step 5: Solve for x
    x = 70,340,353.29/12,172.19
  6. Step 6: Final answer
    x = 5,778.78

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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.