Home / 14,429.46-19,912.68-8,141.88

Finding the Fourth Proportional to 14,429.46, 19,912.68 and 8,141.88

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Solution

The fourth proportional to 14,429.46, 19,912.68 and 8,141.88 is: 11,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,429.46 : 19,912.68 = 8,141.88 : x
  2. Step 2: Convert to fraction form
    14,429.46/19,912.68 = 8,141.88/x
  3. Step 3: Cross multiply
    14,429.46x = 19,912.68 × 8,141.88
  4. Step 4: Simplify right side
    14,429.46x = 162,126,651.04
  5. Step 5: Solve for x
    x = 162,126,651.04/14,429.46
  6. Step 6: Final answer
    x = 11,235.81

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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.