Home / 14,486.78-21,689.17-9,208.69

Finding the Fourth Proportional to 14,486.78, 21,689.17 and 9,208.69

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Solution

The fourth proportional to 14,486.78, 21,689.17 and 9,208.69 is: 13,786.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,486.78 : 21,689.17 = 9,208.69 : x
  2. Step 2: Convert to fraction form
    14,486.78/21,689.17 = 9,208.69/x
  3. Step 3: Cross multiply
    14,486.78x = 21,689.17 × 9,208.69
  4. Step 4: Simplify right side
    14,486.78x = 199,728,765.64
  5. Step 5: Solve for x
    x = 199,728,765.64/14,486.78
  6. Step 6: Final answer
    x = 13,786.97

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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.