Home / 10,709.15-16,062.28-3,318.71

Finding the Fourth Proportional to 10,709.15, 16,062.28 and 3,318.71

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Solution

The fourth proportional to 10,709.15, 16,062.28 and 3,318.71 is: 4,977.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,709.15 : 16,062.28 = 3,318.71 : x
  2. Step 2: Convert to fraction form
    10,709.15/16,062.28 = 3,318.71/x
  3. Step 3: Cross multiply
    10,709.15x = 16,062.28 × 3,318.71
  4. Step 4: Simplify right side
    10,709.15x = 53,305,960.65
  5. Step 5: Solve for x
    x = 53,305,960.65/10,709.15
  6. Step 6: Final answer
    x = 4,977.61

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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.