Home / 13,587.55-20,379.14-3,724.54

Finding the Fourth Proportional to 13,587.55, 20,379.14 and 3,724.54

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Solution

The fourth proportional to 13,587.55, 20,379.14 and 3,724.54 is: 5,586.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.55 : 20,379.14 = 3,724.54 : x
  2. Step 2: Convert to fraction form
    13,587.55/20,379.14 = 3,724.54/x
  3. Step 3: Cross multiply
    13,587.55x = 20,379.14 × 3,724.54
  4. Step 4: Simplify right side
    13,587.55x = 75,902,820.20
  5. Step 5: Solve for x
    x = 75,902,820.20/13,587.55
  6. Step 6: Final answer
    x = 5,586.21

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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.