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Finding the Fourth Proportional to 8,604.53, 12,905.25 and 2,279.45

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Solution

The fourth proportional to 8,604.53, 12,905.25 and 2,279.45 is: 3,418.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.53 : 12,905.25 = 2,279.45 : x
  2. Step 2: Convert to fraction form
    8,604.53/12,905.25 = 2,279.45/x
  3. Step 3: Cross multiply
    8,604.53x = 12,905.25 × 2,279.45
  4. Step 4: Simplify right side
    8,604.53x = 29,416,823.24
  5. Step 5: Solve for x
    x = 29,416,823.24/8,604.53
  6. Step 6: Final answer
    x = 3,418.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.