Home / 13,010.47-19,515.64-3,149.75

Finding the Fourth Proportional to 13,010.47, 19,515.64 and 3,149.75

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Solution

The fourth proportional to 13,010.47, 19,515.64 and 3,149.75 is: 4,724.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.47 : 19,515.64 = 3,149.75 : x
  2. Step 2: Convert to fraction form
    13,010.47/19,515.64 = 3,149.75/x
  3. Step 3: Cross multiply
    13,010.47x = 19,515.64 × 3,149.75
  4. Step 4: Simplify right side
    13,010.47x = 61,469,394.63
  5. Step 5: Solve for x
    x = 61,469,394.63/13,010.47
  6. Step 6: Final answer
    x = 4,724.61

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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.