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Finding the Fourth Proportional to 8,961.32, 12,424.10 and 8,463.09

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Solution

The fourth proportional to 8,961.32, 12,424.10 and 8,463.09 is: 11,733.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.32 : 12,424.10 = 8,463.09 : x
  2. Step 2: Convert to fraction form
    8,961.32/12,424.10 = 8,463.09/x
  3. Step 3: Cross multiply
    8,961.32x = 12,424.10 × 8,463.09
  4. Step 4: Simplify right side
    8,961.32x = 105,146,331.06
  5. Step 5: Solve for x
    x = 105,146,331.06/8,961.32
  6. Step 6: Final answer
    x = 11,733.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.