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Finding the Fourth Proportional to 19,072.25, 26,320.79 and 10,689.29

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Solution

The fourth proportional to 19,072.25, 26,320.79 and 10,689.29 is: 14,751.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,072.25 : 26,320.79 = 10,689.29 : x
  2. Step 2: Convert to fraction form
    19,072.25/26,320.79 = 10,689.29/x
  3. Step 3: Cross multiply
    19,072.25x = 26,320.79 × 10,689.29
  4. Step 4: Simplify right side
    19,072.25x = 281,350,503.89
  5. Step 5: Solve for x
    x = 281,350,503.89/19,072.25
  6. Step 6: Final answer
    x = 14,751.83

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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.