Home / 13,816.71-20,729.11-4,456.54

Finding the Fourth Proportional to 13,816.71, 20,729.11 and 4,456.54

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Solution

The fourth proportional to 13,816.71, 20,729.11 and 4,456.54 is: 6,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.71 : 20,729.11 = 4,456.54 : x
  2. Step 2: Convert to fraction form
    13,816.71/20,729.11 = 4,456.54/x
  3. Step 3: Cross multiply
    13,816.71x = 20,729.11 × 4,456.54
  4. Step 4: Simplify right side
    13,816.71x = 92,380,085.60
  5. Step 5: Solve for x
    x = 92,380,085.60/13,816.71
  6. Step 6: Final answer
    x = 6,686.11

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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.