Home / 13,652.15-20,481.81-4,291.79

Finding the Fourth Proportional to 13,652.15, 20,481.81 and 4,291.79

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Solution

The fourth proportional to 13,652.15, 20,481.81 and 4,291.79 is: 6,438.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,652.15 : 20,481.81 = 4,291.79 : x
  2. Step 2: Convert to fraction form
    13,652.15/20,481.81 = 4,291.79/x
  3. Step 3: Cross multiply
    13,652.15x = 20,481.81 × 4,291.79
  4. Step 4: Simplify right side
    13,652.15x = 87,903,678.54
  5. Step 5: Solve for x
    x = 87,903,678.54/13,652.15
  6. Step 6: Final answer
    x = 6,438.81

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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.