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Finding the Fourth Proportional to 8,994.63, 12,399.75 and 6,333.78

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Solution

The fourth proportional to 8,994.63, 12,399.75 and 6,333.78 is: 8,731.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.63 : 12,399.75 = 6,333.78 : x
  2. Step 2: Convert to fraction form
    8,994.63/12,399.75 = 6,333.78/x
  3. Step 3: Cross multiply
    8,994.63x = 12,399.75 × 6,333.78
  4. Step 4: Simplify right side
    8,994.63x = 78,537,288.56
  5. Step 5: Solve for x
    x = 78,537,288.56/8,994.63
  6. Step 6: Final answer
    x = 8,731.58

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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.