Home / 13,429.78-20,144.68-4,664.68

Finding the Fourth Proportional to 13,429.78, 20,144.68 and 4,664.68

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Solution

The fourth proportional to 13,429.78, 20,144.68 and 4,664.68 is: 6,997.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.78 : 20,144.68 = 4,664.68 : x
  2. Step 2: Convert to fraction form
    13,429.78/20,144.68 = 4,664.68/x
  3. Step 3: Cross multiply
    13,429.78x = 20,144.68 × 4,664.68
  4. Step 4: Simplify right side
    13,429.78x = 93,968,485.90
  5. Step 5: Solve for x
    x = 93,968,485.90/13,429.78
  6. Step 6: Final answer
    x = 6,997.02

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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.