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Finding the Fourth Proportional to 17,176.86, 25,775.03 and 7,315.11

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Solution

The fourth proportional to 17,176.86, 25,775.03 and 7,315.11 is: 10,976.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,176.86 : 25,775.03 = 7,315.11 : x
  2. Step 2: Convert to fraction form
    17,176.86/25,775.03 = 7,315.11/x
  3. Step 3: Cross multiply
    17,176.86x = 25,775.03 × 7,315.11
  4. Step 4: Simplify right side
    17,176.86x = 188,547,179.70
  5. Step 5: Solve for x
    x = 188,547,179.70/17,176.86
  6. Step 6: Final answer
    x = 10,976.81

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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.