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Finding the Fourth Proportional to 19,116.20, 26,380.50 and 10,732.70

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Solution

The fourth proportional to 19,116.20, 26,380.50 and 10,732.70 is: 14,811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.20 : 26,380.50 = 10,732.70 : x
  2. Step 2: Convert to fraction form
    19,116.20/26,380.50 = 10,732.70/x
  3. Step 3: Cross multiply
    19,116.20x = 26,380.50 × 10,732.70
  4. Step 4: Simplify right side
    19,116.20x = 283,133,992.35
  5. Step 5: Solve for x
    x = 283,133,992.35/19,116.20
  6. Step 6: Final answer
    x = 14,811.21

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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.