Home / 14,137.82-21,205.36-7,115.04

Finding the Fourth Proportional to 14,137.82, 21,205.36 and 7,115.04

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Solution

The fourth proportional to 14,137.82, 21,205.36 and 7,115.04 is: 10,671.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,137.82 : 21,205.36 = 7,115.04 : x
  2. Step 2: Convert to fraction form
    14,137.82/21,205.36 = 7,115.04/x
  3. Step 3: Cross multiply
    14,137.82x = 21,205.36 × 7,115.04
  4. Step 4: Simplify right side
    14,137.82x = 150,876,963.49
  5. Step 5: Solve for x
    x = 150,876,963.49/14,137.82
  6. Step 6: Final answer
    x = 10,671.87

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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.