Home / 8,864.79-13,299.48-3,318.57

Finding the Fourth Proportional to 8,864.79, 13,299.48 and 3,318.57

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Solution

The fourth proportional to 8,864.79, 13,299.48 and 3,318.57 is: 4,978.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,864.79 : 13,299.48 = 3,318.57 : x
  2. Step 2: Convert to fraction form
    8,864.79/13,299.48 = 3,318.57/x
  3. Step 3: Cross multiply
    8,864.79x = 13,299.48 × 3,318.57
  4. Step 4: Simplify right side
    8,864.79x = 44,135,188.85
  5. Step 5: Solve for x
    x = 44,135,188.85/8,864.79
  6. Step 6: Final answer
    x = 4,978.71

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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.