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Finding the Fourth Proportional to 14,634.84, 20,196.01 and 7,920.47

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Solution

The fourth proportional to 14,634.84, 20,196.01 and 7,920.47 is: 10,930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,634.84 : 20,196.01 = 7,920.47 : x
  2. Step 2: Convert to fraction form
    14,634.84/20,196.01 = 7,920.47/x
  3. Step 3: Cross multiply
    14,634.84x = 20,196.01 × 7,920.47
  4. Step 4: Simplify right side
    14,634.84x = 159,961,891.32
  5. Step 5: Solve for x
    x = 159,961,891.32/14,634.84
  6. Step 6: Final answer
    x = 10,930.21

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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.