Home / 12,375.14-18,558.09-4,977.10

Finding the Fourth Proportional to 12,375.14, 18,558.09 and 4,977.10

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Solution

The fourth proportional to 12,375.14, 18,558.09 and 4,977.10 is: 7,463.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.14 : 18,558.09 = 4,977.10 : x
  2. Step 2: Convert to fraction form
    12,375.14/18,558.09 = 4,977.10/x
  3. Step 3: Cross multiply
    12,375.14x = 18,558.09 × 4,977.10
  4. Step 4: Simplify right side
    12,375.14x = 92,365,469.74
  5. Step 5: Solve for x
    x = 92,365,469.74/12,375.14
  6. Step 6: Final answer
    x = 7,463.79

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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.