Home / 8,629.83-12,935.46-4,178.09

Finding the Fourth Proportional to 8,629.83, 12,935.46 and 4,178.09

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Solution

The fourth proportional to 8,629.83, 12,935.46 and 4,178.09 is: 6,262.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.83 : 12,935.46 = 4,178.09 : x
  2. Step 2: Convert to fraction form
    8,629.83/12,935.46 = 4,178.09/x
  3. Step 3: Cross multiply
    8,629.83x = 12,935.46 × 4,178.09
  4. Step 4: Simplify right side
    8,629.83x = 54,045,564.08
  5. Step 5: Solve for x
    x = 54,045,564.08/8,629.83
  6. Step 6: Final answer
    x = 6,262.65

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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.