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Finding the Fourth Proportional to 14,382.32, 21,573.48 and 8,222

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Solution

The fourth proportional to 14,382.32, 21,573.48 and 8,222 is: 12,333

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,382.32 : 21,573.48 = 8,222 : x
  2. Step 2: Convert to fraction form
    14,382.32/21,573.48 = 8,222/x
  3. Step 3: Cross multiply
    14,382.32x = 21,573.48 × 8,222
  4. Step 4: Simplify right side
    14,382.32x = 177,377,152.56
  5. Step 5: Solve for x
    x = 177,377,152.56/14,382.32
  6. Step 6: Final answer
    x = 12,333

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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.