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Finding the Fourth Proportional to 9,950.92, 13,716.94 and 7,429.20

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Solution

The fourth proportional to 9,950.92, 13,716.94 and 7,429.20 is: 10,240.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,950.92 : 13,716.94 = 7,429.20 : x
  2. Step 2: Convert to fraction form
    9,950.92/13,716.94 = 7,429.20/x
  3. Step 3: Cross multiply
    9,950.92x = 13,716.94 × 7,429.20
  4. Step 4: Simplify right side
    9,950.92x = 101,905,890.65
  5. Step 5: Solve for x
    x = 101,905,890.65/9,950.92
  6. Step 6: Final answer
    x = 10,240.85

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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.