Home / 13,515.56-20,274.38-3,654.89

Finding the Fourth Proportional to 13,515.56, 20,274.38 and 3,654.89

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Solution

The fourth proportional to 13,515.56, 20,274.38 and 3,654.89 is: 5,482.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.56 : 20,274.38 = 3,654.89 : x
  2. Step 2: Convert to fraction form
    13,515.56/20,274.38 = 3,654.89/x
  3. Step 3: Cross multiply
    13,515.56x = 20,274.38 × 3,654.89
  4. Step 4: Simplify right side
    13,515.56x = 74,100,628.72
  5. Step 5: Solve for x
    x = 74,100,628.72/13,515.56
  6. Step 6: Final answer
    x = 5,482.62

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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.