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Finding the Fourth Proportional to 8,704.60, 12,012.31 and 4,725.68

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Solution

The fourth proportional to 8,704.60, 12,012.31 and 4,725.68 is: 6,521.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.60 : 12,012.31 = 4,725.68 : x
  2. Step 2: Convert to fraction form
    8,704.60/12,012.31 = 4,725.68/x
  3. Step 3: Cross multiply
    8,704.60x = 12,012.31 × 4,725.68
  4. Step 4: Simplify right side
    8,704.60x = 56,766,309.49
  5. Step 5: Solve for x
    x = 56,766,309.49/8,704.60
  6. Step 6: Final answer
    x = 6,521.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.