Home / 13,563.60-20,343.45-5,247.54

Finding the Fourth Proportional to 13,563.60, 20,343.45 and 5,247.54

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Solution

The fourth proportional to 13,563.60, 20,343.45 and 5,247.54 is: 7,870.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.60 : 20,343.45 = 5,247.54 : x
  2. Step 2: Convert to fraction form
    13,563.60/20,343.45 = 5,247.54/x
  3. Step 3: Cross multiply
    13,563.60x = 20,343.45 × 5,247.54
  4. Step 4: Simplify right side
    13,563.60x = 106,753,067.61
  5. Step 5: Solve for x
    x = 106,753,067.61/13,563.60
  6. Step 6: Final answer
    x = 7,870.56

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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.