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Finding the Fourth Proportional to 12,996.63, 19,498.19 and 3,762.63

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Solution

The fourth proportional to 12,996.63, 19,498.19 and 3,762.63 is: 5,644.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,996.63 : 19,498.19 = 3,762.63 : x
  2. Step 2: Convert to fraction form
    12,996.63/19,498.19 = 3,762.63/x
  3. Step 3: Cross multiply
    12,996.63x = 19,498.19 × 3,762.63
  4. Step 4: Simplify right side
    12,996.63x = 73,364,474.64
  5. Step 5: Solve for x
    x = 73,364,474.64/12,996.63
  6. Step 6: Final answer
    x = 5,644.88

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1.5x scale

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.