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Finding the Fourth Proportional to 8,154.99, 12,173.72 and 7,546.41

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Solution

The fourth proportional to 8,154.99, 12,173.72 and 7,546.41 is: 11,265.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.99 : 12,173.72 = 7,546.41 : x
  2. Step 2: Convert to fraction form
    8,154.99/12,173.72 = 7,546.41/x
  3. Step 3: Cross multiply
    8,154.99x = 12,173.72 × 7,546.41
  4. Step 4: Simplify right side
    8,154.99x = 91,867,844.61
  5. Step 5: Solve for x
    x = 91,867,844.61/8,154.99
  6. Step 6: Final answer
    x = 11,265.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.