Home / 12,338.84-18,502.72-5,766.96

Finding the Fourth Proportional to 12,338.84, 18,502.72 and 5,766.96

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Solution

The fourth proportional to 12,338.84, 18,502.72 and 5,766.96 is: 8,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,338.84 : 18,502.72 = 5,766.96 : x
  2. Step 2: Convert to fraction form
    12,338.84/18,502.72 = 5,766.96/x
  3. Step 3: Cross multiply
    12,338.84x = 18,502.72 × 5,766.96
  4. Step 4: Simplify right side
    12,338.84x = 106,704,446.13
  5. Step 5: Solve for x
    x = 106,704,446.13/12,338.84
  6. Step 6: Final answer
    x = 8,647.85

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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.