Home / 12,647.64-18,974.72-4,857.08

Finding the Fourth Proportional to 12,647.64, 18,974.72 and 4,857.08

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Solution

The fourth proportional to 12,647.64, 18,974.72 and 4,857.08 is: 7,286.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,647.64 : 18,974.72 = 4,857.08 : x
  2. Step 2: Convert to fraction form
    12,647.64/18,974.72 = 4,857.08/x
  3. Step 3: Cross multiply
    12,647.64x = 18,974.72 × 4,857.08
  4. Step 4: Simplify right side
    12,647.64x = 92,161,733.02
  5. Step 5: Solve for x
    x = 92,161,733.02/12,647.64
  6. Step 6: Final answer
    x = 7,286.87

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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.