Home / 14,431.39-21,671.79-8,917.45

Finding the Fourth Proportional to 14,431.39, 21,671.79 and 8,917.45

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Solution

The fourth proportional to 14,431.39, 21,671.79 and 8,917.45 is: 13,391.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,431.39 : 21,671.79 = 8,917.45 : x
  2. Step 2: Convert to fraction form
    14,431.39/21,671.79 = 8,917.45/x
  3. Step 3: Cross multiply
    14,431.39x = 21,671.79 × 8,917.45
  4. Step 4: Simplify right side
    14,431.39x = 193,257,103.74
  5. Step 5: Solve for x
    x = 193,257,103.74/14,431.39
  6. Step 6: Final answer
    x = 13,391.44

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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.