Home / 13,695.85-20,544.36-3,835.72

Finding the Fourth Proportional to 13,695.85, 20,544.36 and 3,835.72

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Solution

The fourth proportional to 13,695.85, 20,544.36 and 3,835.72 is: 5,753.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.85 : 20,544.36 = 3,835.72 : x
  2. Step 2: Convert to fraction form
    13,695.85/20,544.36 = 3,835.72/x
  3. Step 3: Cross multiply
    13,695.85x = 20,544.36 × 3,835.72
  4. Step 4: Simplify right side
    13,695.85x = 78,802,412.54
  5. Step 5: Solve for x
    x = 78,802,412.54/13,695.85
  6. Step 6: Final answer
    x = 5,753.74

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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.