Home / 12,141.26-18,200.21-6,220.94

Finding the Fourth Proportional to 12,141.26, 18,200.21 and 6,220.94

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Solution

The fourth proportional to 12,141.26, 18,200.21 and 6,220.94 is: 9,325.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141.26 : 18,200.21 = 6,220.94 : x
  2. Step 2: Convert to fraction form
    12,141.26/18,200.21 = 6,220.94/x
  3. Step 3: Cross multiply
    12,141.26x = 18,200.21 × 6,220.94
  4. Step 4: Simplify right side
    12,141.26x = 113,222,428.79
  5. Step 5: Solve for x
    x = 113,222,428.79/12,141.26
  6. Step 6: Final answer
    x = 9,325.42

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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.