Home / 13,777.56-20,662.92-5,454.72

Finding the Fourth Proportional to 13,777.56, 20,662.92 and 5,454.72

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Solution

The fourth proportional to 13,777.56, 20,662.92 and 5,454.72 is: 8,180.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,777.56 : 20,662.92 = 5,454.72 : x
  2. Step 2: Convert to fraction form
    13,777.56/20,662.92 = 5,454.72/x
  3. Step 3: Cross multiply
    13,777.56x = 20,662.92 × 5,454.72
  4. Step 4: Simplify right side
    13,777.56x = 112,710,442.98
  5. Step 5: Solve for x
    x = 112,710,442.98/13,777.56
  6. Step 6: Final answer
    x = 8,180.73

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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.