Home / 12,375.88-18,559.20-4,977.84

Finding the Fourth Proportional to 12,375.88, 18,559.20 and 4,977.84

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Solution

The fourth proportional to 12,375.88, 18,559.20 and 4,977.84 is: 7,464.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.88 : 18,559.20 = 4,977.84 : x
  2. Step 2: Convert to fraction form
    12,375.88/18,559.20 = 4,977.84/x
  3. Step 3: Cross multiply
    12,375.88x = 18,559.20 × 4,977.84
  4. Step 4: Simplify right side
    12,375.88x = 92,384,728.13
  5. Step 5: Solve for x
    x = 92,384,728.13/12,375.88
  6. Step 6: Final answer
    x = 7,464.90

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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.