Home / 12,375.12-18,558.09-4,977.05

Finding the Fourth Proportional to 12,375.12, 18,558.09 and 4,977.05

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Solution

The fourth proportional to 12,375.12, 18,558.09 and 4,977.05 is: 7,463.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.12 : 18,558.09 = 4,977.05 : x
  2. Step 2: Convert to fraction form
    12,375.12/18,558.09 = 4,977.05/x
  3. Step 3: Cross multiply
    12,375.12x = 18,558.09 × 4,977.05
  4. Step 4: Simplify right side
    12,375.12x = 92,364,588.23
  5. Step 5: Solve for x
    x = 92,364,588.23/12,375.12
  6. Step 6: Final answer
    x = 7,463.73

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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.