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Finding the Fourth Proportional to 8,460.92, 11,680.76 and 5,104.56

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Solution

The fourth proportional to 8,460.92, 11,680.76 and 5,104.56 is: 7,047.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.92 : 11,680.76 = 5,104.56 : x
  2. Step 2: Convert to fraction form
    8,460.92/11,680.76 = 5,104.56/x
  3. Step 3: Cross multiply
    8,460.92x = 11,680.76 × 5,104.56
  4. Step 4: Simplify right side
    8,460.92x = 59,625,140.27
  5. Step 5: Solve for x
    x = 59,625,140.27/8,460.92
  6. Step 6: Final answer
    x = 7,047.12

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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.