Home / 14,067.88-21,105.12-4,207

Finding the Fourth Proportional to 14,067.88, 21,105.12 and 4,207

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Solution

The fourth proportional to 14,067.88, 21,105.12 and 4,207 is: 6,311.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,067.88 : 21,105.12 = 4,207 : x
  2. Step 2: Convert to fraction form
    14,067.88/21,105.12 = 4,207/x
  3. Step 3: Cross multiply
    14,067.88x = 21,105.12 × 4,207
  4. Step 4: Simplify right side
    14,067.88x = 88,789,239.84
  5. Step 5: Solve for x
    x = 88,789,239.84/14,067.88
  6. Step 6: Final answer
    x = 6,311.49

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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.