Home / 13,722.77-20,579.54-5,400.60

Finding the Fourth Proportional to 13,722.77, 20,579.54 and 5,400.60

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Solution

The fourth proportional to 13,722.77, 20,579.54 and 5,400.60 is: 8,099.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.77 : 20,579.54 = 5,400.60 : x
  2. Step 2: Convert to fraction form
    13,722.77/20,579.54 = 5,400.60/x
  3. Step 3: Cross multiply
    13,722.77x = 20,579.54 × 5,400.60
  4. Step 4: Simplify right side
    13,722.77x = 111,141,836.72
  5. Step 5: Solve for x
    x = 111,141,836.72/13,722.77
  6. Step 6: Final answer
    x = 8,099.08

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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.