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Finding the Fourth Proportional to 14,487.44, 19,995.78 and 8,824.05

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Solution

The fourth proportional to 14,487.44, 19,995.78 and 8,824.05 is: 12,179.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.44 : 19,995.78 = 8,824.05 : x
  2. Step 2: Convert to fraction form
    14,487.44/19,995.78 = 8,824.05/x
  3. Step 3: Cross multiply
    14,487.44x = 19,995.78 × 8,824.05
  4. Step 4: Simplify right side
    14,487.44x = 176,443,762.51
  5. Step 5: Solve for x
    x = 176,443,762.51/14,487.44
  6. Step 6: Final answer
    x = 12,179.09

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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.