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Finding the Fourth Proportional to 14,634.59, 20,195.73 and 7,920.23

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Solution

The fourth proportional to 14,634.59, 20,195.73 and 7,920.23 is: 10,929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,634.59 : 20,195.73 = 7,920.23 : x
  2. Step 2: Convert to fraction form
    14,634.59/20,195.73 = 7,920.23/x
  3. Step 3: Cross multiply
    14,634.59x = 20,195.73 × 7,920.23
  4. Step 4: Simplify right side
    14,634.59x = 159,954,725.64
  5. Step 5: Solve for x
    x = 159,954,725.64/14,634.59
  6. Step 6: Final answer
    x = 10,929.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.