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Finding the Fourth Proportional to 8,685.30, 13,033.41 and 4,994.73

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Solution

The fourth proportional to 8,685.30, 13,033.41 and 4,994.73 is: 7,495.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.30 : 13,033.41 = 4,994.73 : x
  2. Step 2: Convert to fraction form
    8,685.30/13,033.41 = 4,994.73/x
  3. Step 3: Cross multiply
    8,685.30x = 13,033.41 × 4,994.73
  4. Step 4: Simplify right side
    8,685.30x = 65,098,363.93
  5. Step 5: Solve for x
    x = 65,098,363.93/8,685.30
  6. Step 6: Final answer
    x = 7,495.23

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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.