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Finding the Fourth Proportional to 12,637.52, 18,952.17 and 4,201.76

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Solution

The fourth proportional to 12,637.52, 18,952.17 and 4,201.76 is: 6,301.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.52 : 18,952.17 = 4,201.76 : x
  2. Step 2: Convert to fraction form
    12,637.52/18,952.17 = 4,201.76/x
  3. Step 3: Cross multiply
    12,637.52x = 18,952.17 × 4,201.76
  4. Step 4: Simplify right side
    12,637.52x = 79,632,375.06
  5. Step 5: Solve for x
    x = 79,632,375.06/12,637.52
  6. Step 6: Final answer
    x = 6,301.27

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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.