Home / 13,146.53-19,719.79-3,529.54

Finding the Fourth Proportional to 13,146.53, 19,719.79 and 3,529.54

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Solution

The fourth proportional to 13,146.53, 19,719.79 and 3,529.54 is: 5,294.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.53 : 19,719.79 = 3,529.54 : x
  2. Step 2: Convert to fraction form
    13,146.53/19,719.79 = 3,529.54/x
  3. Step 3: Cross multiply
    13,146.53x = 19,719.79 × 3,529.54
  4. Step 4: Simplify right side
    13,146.53x = 69,601,735.12
  5. Step 5: Solve for x
    x = 69,601,735.12/13,146.53
  6. Step 6: Final answer
    x = 5,294.31

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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.