Home / 14,141.94-19,516.42-7,768.80

Finding the Fourth Proportional to 14,141.94, 19,516.42 and 7,768.80

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Solution

The fourth proportional to 14,141.94, 19,516.42 and 7,768.80 is: 10,721.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,141.94 : 19,516.42 = 7,768.80 : x
  2. Step 2: Convert to fraction form
    14,141.94/19,516.42 = 7,768.80/x
  3. Step 3: Cross multiply
    14,141.94x = 19,516.42 × 7,768.80
  4. Step 4: Simplify right side
    14,141.94x = 151,619,163.70
  5. Step 5: Solve for x
    x = 151,619,163.70/14,141.94
  6. Step 6: Final answer
    x = 10,721.24

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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.