Home / 14,065.82-21,101.76-4,205.90

Finding the Fourth Proportional to 14,065.82, 21,101.76 and 4,205.90

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Solution

The fourth proportional to 14,065.82, 21,101.76 and 4,205.90 is: 6,309.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,065.82 : 21,101.76 = 4,205.90 : x
  2. Step 2: Convert to fraction form
    14,065.82/21,101.76 = 4,205.90/x
  3. Step 3: Cross multiply
    14,065.82x = 21,101.76 × 4,205.90
  4. Step 4: Simplify right side
    14,065.82x = 88,751,892.38
  5. Step 5: Solve for x
    x = 88,751,892.38/14,065.82
  6. Step 6: Final answer
    x = 6,309.76

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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.