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Finding the Fourth Proportional to 17,409.72, 26,118.90 and 5,097.72

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Solution

The fourth proportional to 17,409.72, 26,118.90 and 5,097.72 is: 7,647.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,409.72 : 26,118.90 = 5,097.72 : x
  2. Step 2: Convert to fraction form
    17,409.72/26,118.90 = 5,097.72/x
  3. Step 3: Cross multiply
    17,409.72x = 26,118.90 × 5,097.72
  4. Step 4: Simplify right side
    17,409.72x = 133,146,838.91
  5. Step 5: Solve for x
    x = 133,146,838.91/17,409.72
  6. Step 6: Final answer
    x = 7,647.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.