Home / 14,942.49-20,620.41-8,227.89

Finding the Fourth Proportional to 14,942.49, 20,620.41 and 8,227.89

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Solution

The fourth proportional to 14,942.49, 20,620.41 and 8,227.89 is: 11,354.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.49 : 20,620.41 = 8,227.89 : x
  2. Step 2: Convert to fraction form
    14,942.49/20,620.41 = 8,227.89/x
  3. Step 3: Cross multiply
    14,942.49x = 20,620.41 × 8,227.89
  4. Step 4: Simplify right side
    14,942.49x = 169,662,434.38
  5. Step 5: Solve for x
    x = 169,662,434.38/14,942.49
  6. Step 6: Final answer
    x = 11,354.36

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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.