Home / 12,254.09-18,380.68-3,489.01

Finding the Fourth Proportional to 12,254.09, 18,380.68 and 3,489.01

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Solution

The fourth proportional to 12,254.09, 18,380.68 and 3,489.01 is: 5,233.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254.09 : 18,380.68 = 3,489.01 : x
  2. Step 2: Convert to fraction form
    12,254.09/18,380.68 = 3,489.01/x
  3. Step 3: Cross multiply
    12,254.09x = 18,380.68 × 3,489.01
  4. Step 4: Simplify right side
    12,254.09x = 64,130,321.65
  5. Step 5: Solve for x
    x = 64,130,321.65/12,254.09
  6. Step 6: Final answer
    x = 5,233.38

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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.