Home / 9,045.92-12,481.68-5,318.56

Finding the Fourth Proportional to 9,045.92, 12,481.68 and 5,318.56

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Solution

The fourth proportional to 9,045.92, 12,481.68 and 5,318.56 is: 7,338.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,045.92 : 12,481.68 = 5,318.56 : x
  2. Step 2: Convert to fraction form
    9,045.92/12,481.68 = 5,318.56/x
  3. Step 3: Cross multiply
    9,045.92x = 12,481.68 × 5,318.56
  4. Step 4: Simplify right side
    9,045.92x = 66,384,563.98
  5. Step 5: Solve for x
    x = 66,384,563.98/9,045.92
  6. Step 6: Final answer
    x = 7,338.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.