Home / 12,141.28-18,211.87-5,469.97

Finding the Fourth Proportional to 12,141.28, 18,211.87 and 5,469.97

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Solution

The fourth proportional to 12,141.28, 18,211.87 and 5,469.97 is: 8,204.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141.28 : 18,211.87 = 5,469.97 : x
  2. Step 2: Convert to fraction form
    12,141.28/18,211.87 = 5,469.97/x
  3. Step 3: Cross multiply
    12,141.28x = 18,211.87 × 5,469.97
  4. Step 4: Simplify right side
    12,141.28x = 99,618,323.34
  5. Step 5: Solve for x
    x = 99,618,323.34/12,141.28
  6. Step 6: Final answer
    x = 8,204.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.