Home / 16,907.70-23,318.46-12,668.72

Finding the Fourth Proportional to 16,907.70, 23,318.46 and 12,668.72

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Solution

The fourth proportional to 16,907.70, 23,318.46 and 12,668.72 is: 17,472.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,907.70 : 23,318.46 = 12,668.72 : x
  2. Step 2: Convert to fraction form
    16,907.70/23,318.46 = 12,668.72/x
  3. Step 3: Cross multiply
    16,907.70x = 23,318.46 × 12,668.72
  4. Step 4: Simplify right side
    16,907.70x = 295,414,923.98
  5. Step 5: Solve for x
    x = 295,414,923.98/16,907.70
  6. Step 6: Final answer
    x = 17,472.21

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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.