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Finding the Fourth Proportional to 17,129.44, 25,689.12 and 7,263.28

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Solution

The fourth proportional to 17,129.44, 25,689.12 and 7,263.28 is: 10,892.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,129.44 : 25,689.12 = 7,263.28 : x
  2. Step 2: Convert to fraction form
    17,129.44/25,689.12 = 7,263.28/x
  3. Step 3: Cross multiply
    17,129.44x = 25,689.12 × 7,263.28
  4. Step 4: Simplify right side
    17,129.44x = 186,587,271.51
  5. Step 5: Solve for x
    x = 186,587,271.51/17,129.44
  6. Step 6: Final answer
    x = 10,892.78

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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.