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Finding the Fourth Proportional to 12,794.39, 17,655.05 and 9,439.07

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Solution

The fourth proportional to 12,794.39, 17,655.05 and 9,439.07 is: 13,025.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,794.39 : 17,655.05 = 9,439.07 : x
  2. Step 2: Convert to fraction form
    12,794.39/17,655.05 = 9,439.07/x
  3. Step 3: Cross multiply
    12,794.39x = 17,655.05 × 9,439.07
  4. Step 4: Simplify right side
    12,794.39x = 166,647,117.33
  5. Step 5: Solve for x
    x = 166,647,117.33/12,794.39
  6. Step 6: Final answer
    x = 13,025.02

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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.