Home / 13,562.11-20,327.55-5,238.46

Finding the Fourth Proportional to 13,562.11, 20,327.55 and 5,238.46

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Solution

The fourth proportional to 13,562.11, 20,327.55 and 5,238.46 is: 7,851.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.11 : 20,327.55 = 5,238.46 : x
  2. Step 2: Convert to fraction form
    13,562.11/20,327.55 = 5,238.46/x
  3. Step 3: Cross multiply
    13,562.11x = 20,327.55 × 5,238.46
  4. Step 4: Simplify right side
    13,562.11x = 106,485,057.57
  5. Step 5: Solve for x
    x = 106,485,057.57/13,562.11
  6. Step 6: Final answer
    x = 7,851.66

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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.