Home / 13,551.64-20,324.18-3,690.97

Finding the Fourth Proportional to 13,551.64, 20,324.18 and 3,690.97

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Solution

The fourth proportional to 13,551.64, 20,324.18 and 3,690.97 is: 5,535.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.64 : 20,324.18 = 3,690.97 : x
  2. Step 2: Convert to fraction form
    13,551.64/20,324.18 = 3,690.97/x
  3. Step 3: Cross multiply
    13,551.64x = 20,324.18 × 3,690.97
  4. Step 4: Simplify right side
    13,551.64x = 75,015,897.07
  5. Step 5: Solve for x
    x = 75,015,897.07/13,551.64
  6. Step 6: Final answer
    x = 5,535.56

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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.