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Finding the Fourth Proportional to 12,635.47, 18,960.04 and 6,402.52

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Solution

The fourth proportional to 12,635.47, 18,960.04 and 6,402.52 is: 9,607.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,635.47 : 18,960.04 = 6,402.52 : x
  2. Step 2: Convert to fraction form
    12,635.47/18,960.04 = 6,402.52/x
  3. Step 3: Cross multiply
    12,635.47x = 18,960.04 × 6,402.52
  4. Step 4: Simplify right side
    12,635.47x = 121,392,067.00
  5. Step 5: Solve for x
    x = 121,392,067.00/12,635.47
  6. Step 6: Final answer
    x = 9,607.24

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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.