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Finding the Fourth Proportional to 8,911.01, 12,275.78 and 7,494.72

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Solution

The fourth proportional to 8,911.01, 12,275.78 and 7,494.72 is: 10,324.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.01 : 12,275.78 = 7,494.72 : x
  2. Step 2: Convert to fraction form
    8,911.01/12,275.78 = 7,494.72/x
  3. Step 3: Cross multiply
    8,911.01x = 12,275.78 × 7,494.72
  4. Step 4: Simplify right side
    8,911.01x = 92,003,496.41
  5. Step 5: Solve for x
    x = 92,003,496.41/8,911.01
  6. Step 6: Final answer
    x = 10,324.70

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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.