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Finding the Fourth Proportional to 14,487.21, 19,996.02 and 8,203.23

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Solution

The fourth proportional to 14,487.21, 19,996.02 and 8,203.23 is: 11,322.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,487.21 : 19,996.02 = 8,203.23 : x
  2. Step 2: Convert to fraction form
    14,487.21/19,996.02 = 8,203.23/x
  3. Step 3: Cross multiply
    14,487.21x = 19,996.02 × 8,203.23
  4. Step 4: Simplify right side
    14,487.21x = 164,031,951.14
  5. Step 5: Solve for x
    x = 164,031,951.14/14,487.21
  6. Step 6: Final answer
    x = 11,322.54

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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.