Home / 13,644.42-20,474.48-5,746.31

Finding the Fourth Proportional to 13,644.42, 20,474.48 and 5,746.31

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Solution

The fourth proportional to 13,644.42, 20,474.48 and 5,746.31 is: 8,622.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.42 : 20,474.48 = 5,746.31 : x
  2. Step 2: Convert to fraction form
    13,644.42/20,474.48 = 5,746.31/x
  3. Step 3: Cross multiply
    13,644.42x = 20,474.48 × 5,746.31
  4. Step 4: Simplify right side
    13,644.42x = 117,652,774.72
  5. Step 5: Solve for x
    x = 117,652,774.72/13,644.42
  6. Step 6: Final answer
    x = 8,622.78

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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.