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Finding the Fourth Proportional to 8,604.36, 12,889.26 and 7,282.44

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Solution

The fourth proportional to 8,604.36, 12,889.26 and 7,282.44 is: 10,909.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.36 : 12,889.26 = 7,282.44 : x
  2. Step 2: Convert to fraction form
    8,604.36/12,889.26 = 7,282.44/x
  3. Step 3: Cross multiply
    8,604.36x = 12,889.26 × 7,282.44
  4. Step 4: Simplify right side
    8,604.36x = 93,865,262.59
  5. Step 5: Solve for x
    x = 93,865,262.59/8,604.36
  6. Step 6: Final answer
    x = 10,909.03

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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.