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Finding the Fourth Proportional to 8,604.75, 12,909.30 and 2,448.75

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Solution

The fourth proportional to 8,604.75, 12,909.30 and 2,448.75 is: 3,673.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.75 : 12,909.30 = 2,448.75 : x
  2. Step 2: Convert to fraction form
    8,604.75/12,909.30 = 2,448.75/x
  3. Step 3: Cross multiply
    8,604.75x = 12,909.30 × 2,448.75
  4. Step 4: Simplify right side
    8,604.75x = 31,611,648.38
  5. Step 5: Solve for x
    x = 31,611,648.38/8,604.75
  6. Step 6: Final answer
    x = 3,673.74

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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.