Home / 8,603.28-12,906.81-3,409.02

Finding the Fourth Proportional to 8,603.28, 12,906.81 and 3,409.02

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Solution

The fourth proportional to 8,603.28, 12,906.81 and 3,409.02 is: 5,114.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.28 : 12,906.81 = 3,409.02 : x
  2. Step 2: Convert to fraction form
    8,603.28/12,906.81 = 3,409.02/x
  3. Step 3: Cross multiply
    8,603.28x = 12,906.81 × 3,409.02
  4. Step 4: Simplify right side
    8,603.28x = 43,999,573.43
  5. Step 5: Solve for x
    x = 43,999,573.43/8,603.28
  6. Step 6: Final answer
    x = 5,114.28

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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.