Home / 8,419.36-12,632.28-3,224.04

Finding the Fourth Proportional to 8,419.36, 12,632.28 and 3,224.04

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Solution

The fourth proportional to 8,419.36, 12,632.28 and 3,224.04 is: 4,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.36 : 12,632.28 = 3,224.04 : x
  2. Step 2: Convert to fraction form
    8,419.36/12,632.28 = 3,224.04/x
  3. Step 3: Cross multiply
    8,419.36x = 12,632.28 × 3,224.04
  4. Step 4: Simplify right side
    8,419.36x = 40,726,976.01
  5. Step 5: Solve for x
    x = 40,726,976.01/8,419.36
  6. Step 6: Final answer
    x = 4,837.30

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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.