Home / 13,398.72-20,105-6,008.32

Finding the Fourth Proportional to 13,398.72, 20,105 and 6,008.32

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Solution

The fourth proportional to 13,398.72, 20,105 and 6,008.32 is: 9,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,398.72 : 20,105 = 6,008.32 : x
  2. Step 2: Convert to fraction form
    13,398.72/20,105 = 6,008.32/x
  3. Step 3: Cross multiply
    13,398.72x = 20,105 × 6,008.32
  4. Step 4: Simplify right side
    13,398.72x = 120,797,273.60
  5. Step 5: Solve for x
    x = 120,797,273.60/13,398.72
  6. Step 6: Final answer
    x = 9,015.58

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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.