Home / 8,999.25-13,496.34-5,390.43

Finding the Fourth Proportional to 8,999.25, 13,496.34 and 5,390.43

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Solution

The fourth proportional to 8,999.25, 13,496.34 and 5,390.43 is: 8,084.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.25 : 13,496.34 = 5,390.43 : x
  2. Step 2: Convert to fraction form
    8,999.25/13,496.34 = 5,390.43/x
  3. Step 3: Cross multiply
    8,999.25x = 13,496.34 × 5,390.43
  4. Step 4: Simplify right side
    8,999.25x = 72,751,076.03
  5. Step 5: Solve for x
    x = 72,751,076.03/8,999.25
  6. Step 6: Final answer
    x = 8,084.13

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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.