Home / 13,644.58-20,466.87-3,783.86

Finding the Fourth Proportional to 13,644.58, 20,466.87 and 3,783.86

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Solution

The fourth proportional to 13,644.58, 20,466.87 and 3,783.86 is: 5,675.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.58 : 20,466.87 = 3,783.86 : x
  2. Step 2: Convert to fraction form
    13,644.58/20,466.87 = 3,783.86/x
  3. Step 3: Cross multiply
    13,644.58x = 20,466.87 × 3,783.86
  4. Step 4: Simplify right side
    13,644.58x = 77,443,770.72
  5. Step 5: Solve for x
    x = 77,443,770.72/13,644.58
  6. Step 6: Final answer
    x = 5,675.79

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1.5x scale

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.