Home / 13,690.33-20,527.64-5,360.60

Finding the Fourth Proportional to 13,690.33, 20,527.64 and 5,360.60

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Solution

The fourth proportional to 13,690.33, 20,527.64 and 5,360.60 is: 8,037.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.33 : 20,527.64 = 5,360.60 : x
  2. Step 2: Convert to fraction form
    13,690.33/20,527.64 = 5,360.60/x
  3. Step 3: Cross multiply
    13,690.33x = 20,527.64 × 5,360.60
  4. Step 4: Simplify right side
    13,690.33x = 110,040,359.73
  5. Step 5: Solve for x
    x = 110,040,359.73/13,690.33
  6. Step 6: Final answer
    x = 8,037.82

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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.