Home / 13,429.28-20,147.04-4,664.32

Finding the Fourth Proportional to 13,429.28, 20,147.04 and 4,664.32

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Solution

The fourth proportional to 13,429.28, 20,147.04 and 4,664.32 is: 6,997.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.28 : 20,147.04 = 4,664.32 : x
  2. Step 2: Convert to fraction form
    13,429.28/20,147.04 = 4,664.32/x
  3. Step 3: Cross multiply
    13,429.28x = 20,147.04 × 4,664.32
  4. Step 4: Simplify right side
    13,429.28x = 93,972,241.61
  5. Step 5: Solve for x
    x = 93,972,241.61/13,429.28
  6. Step 6: Final answer
    x = 6,997.56

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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.