Home / 13,316.87-19,975.62-3,456.54

Finding the Fourth Proportional to 13,316.87, 19,975.62 and 3,456.54

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Solution

The fourth proportional to 13,316.87, 19,975.62 and 3,456.54 is: 5,184.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.87 : 19,975.62 = 3,456.54 : x
  2. Step 2: Convert to fraction form
    13,316.87/19,975.62 = 3,456.54/x
  3. Step 3: Cross multiply
    13,316.87x = 19,975.62 × 3,456.54
  4. Step 4: Simplify right side
    13,316.87x = 69,046,512.27
  5. Step 5: Solve for x
    x = 69,046,512.27/13,316.87
  6. Step 6: Final answer
    x = 5,184.89

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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.