Home / 13,773.08-20,659.62-3,777.90

Finding the Fourth Proportional to 13,773.08, 20,659.62 and 3,777.90

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Solution

The fourth proportional to 13,773.08, 20,659.62 and 3,777.90 is: 5,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773.08 : 20,659.62 = 3,777.90 : x
  2. Step 2: Convert to fraction form
    13,773.08/20,659.62 = 3,777.90/x
  3. Step 3: Cross multiply
    13,773.08x = 20,659.62 × 3,777.90
  4. Step 4: Simplify right side
    13,773.08x = 78,049,978.40
  5. Step 5: Solve for x
    x = 78,049,978.40/13,773.08
  6. Step 6: Final answer
    x = 5,666.85

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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.