Home / 13,461.38-20,192.88-4,227.38

Finding the Fourth Proportional to 13,461.38, 20,192.88 and 4,227.38

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Solution

The fourth proportional to 13,461.38, 20,192.88 and 4,227.38 is: 6,341.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.38 : 20,192.88 = 4,227.38 : x
  2. Step 2: Convert to fraction form
    13,461.38/20,192.88 = 4,227.38/x
  3. Step 3: Cross multiply
    13,461.38x = 20,192.88 × 4,227.38
  4. Step 4: Simplify right side
    13,461.38x = 85,362,876.09
  5. Step 5: Solve for x
    x = 85,362,876.09/13,461.38
  6. Step 6: Final answer
    x = 6,341.32

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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.