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Finding the Fourth Proportional to 8,872.63, 12,236.64 and 6,329.03

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Solution

The fourth proportional to 8,872.63, 12,236.64 and 6,329.03 is: 8,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.63 : 12,236.64 = 6,329.03 : x
  2. Step 2: Convert to fraction form
    8,872.63/12,236.64 = 6,329.03/x
  3. Step 3: Cross multiply
    8,872.63x = 12,236.64 × 6,329.03
  4. Step 4: Simplify right side
    8,872.63x = 77,446,061.66
  5. Step 5: Solve for x
    x = 77,446,061.66/8,872.63
  6. Step 6: Final answer
    x = 8,728.65

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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.